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over- pref. (前缀)Above or upon in position: 在上的:置于上面的: overpass; overcoat. 天桥;外套 Superior in rank or importance: 位高的:排名高或重要性高的: overlord. 大君主 To an inverted or reverse position: 反转的:反转或改变位置的: overturn. 推翻 Excessively: 过度的: overcharge. 过度充电 语源 Middle English  Middle English  from Old English ofer-   * see  uper  from Old English ofer-   *参见 uper  用法 Many compounds other than those entered here may be formed withover-.   In forming compounds, over-   is joined with the following element without space or a hyphen:  许多上述未列的复合字也可能由over-  所组成。这些复合字形成, over-  可能直接与后面的元素相连而不再加上空格或连字号:  overachieve, overrepresented. overachieve,overrepresented。 Note, however, thatover   may combine with other words as a unit modifier. In such cases the words are joined by hyphens:  但要注意的是,over-  可能被其它字用来当作一个修饰词。在此种情况下这些字就要使用连字号与其相连了:  over-the-counter medication. over-the-counter medication(非处方药) over-
prefix excessive or excessively; beyond an agreed or desirable limit ⇒  overcharge 
⇒  overdue 
⇒  oversimplify 
indicating superior rank ⇒  overseer 
indicating location or movement above ⇒  overhang 
indicating movement downwards ⇒  overthrow 
Example Sentences You take some money in an envelope, say something pertinent while you're handing it over- and that's when I step in.
 Fraser, Christine Marion  Noble Beginnnings   Mary-Lou caught it in the end and handed it to her with a laughing, `Better pull it well down over- " when she stopped short.
 Brent-Dyer, Elinor  Adrienne and the Chalet School   But dawn also meant another night's work was almost over- and I'd have to unhook from the rhythm and routine of the department.
 Pritchard, John  Night Sisters   over-
word-forming element meaning "above; highest; across; too much; above normal; outer," from Old English ofer  (see over). Over  and its Germanic relations were widely used as prefixes, and sometimes could be used with negative force. This is rare in Modern English, but compare Gothic ufarmunnon  "to forget," ufar-swaran  "to swear falsely;" Old English ofercræft  "fraud."
over- /ˈəʊvə / combining form arch. poet. o'er- /ɔ: / ORIGIN:  Repr. 
over  adverb, preposition, adjective Prefixed freely to verbs, nouns, adjectives, & adverbs in various relations and with various senses, esp. indicating (a) (b) overly  adverb (c) (d)  DERIVATIVE  overaˈffectionate adjective M17 overarˈticulate verb trans.  E20 overarticuˈlation noun M20 overaˈttention noun to ) M18 overaward adjective Austral. M20 overˈballast verb trans.  E17 overbank noun Aeronautics E20 overˈbank verb (a) †  verb intrans. Watchmaking (b) verb trans. & intrans. Aeronautics M19 overˈbark adjective M20 overˈbeat verb trans.  rare E17 overbelief noun (a) (b) M19 overˈbias verb trans.  M17 overbite noun Dentistry esp.  vertical overlapping of the incisors: L19 overˈbitter adjective E17 overˈbitterly adverb LME overˈbitterness noun OE overblanket noun L20 overˈbleach verb trans.  M19 overˈblind adjective rare LME overblouse noun E20 overˈboil verb (a) verb trans. (b) verb intrans. fig. L16 overboot noun M19 overˈbright adjective L16 overˈbrim verb (a) verb intrans. (b) verb trans. E17 overˈbrood verb trans.  poet. M16 overˈbrow verb trans.  poet. M18 overˈbudget verb, adjective, & adverb (a) verb trans. & intrans.  (b) adjective (c) adverb M20 overˈbull verb trans.  Stock Exchange E20 overbump noun & verb (a) noun (b) verb trans.  E20 overˈcanopy verb trans.  L16 overˈcatch verb trans.  obsolete dial. (a) (b) † fig. L16 overcentraliˈzation noun L19 overˈcentralized adjective M19 overchosen adjective M20 overˈcivil adjective M17 overˈcivilized adjective E19 † overclamour verb trans.  E18–L19 overclass noun M20 overcloak noun (a) (b) Building M19 overˈcloy verb trans.  E16 overcoil noun L19 overconˈcern noun M18 overconˈcerned adjective E18 overconˈsolidated adjective M20 overconsoliˈdation noun M20 overˈcook verb (a) verb trans. (b) trans. & intrans. it ):M19 overˈcool verb trans.  L16 overˈcount verb trans.  (a) (b) L16 overˈcover verb trans.  LME overˈcreep verb trans.  M17 overˈcritical adjective M17 overˈcross verb trans.  rare LME overˈcrow verb trans.  M16 overˈcrust verb trans.  E17 overˈcunning noun & adjective (a) † noun (b) adjective E17 overcup adjective Quercus macrocarpa Q. lyrata E19 overcurrent noun (a) † a current of air high in the atmosphere;(b) E20 overˈdamp verb trans.  (a) † (rare (b) E18 overˈdaring adjective L16 overdate noun attrib. M20 overˈdated adjective rare M17 overday noun & adjective (a) noun (b) adjective OE overˈdear adverb & adjective (a) † adverb (b) adjective ME overˈdecorate verb trans.  M19 overdeˈsign verb & noun (a) verb trans.  (b) noun M20 overdeˈsire noun M17 overdifferentiˈation noun Linguistics E20 overdiˈlute verb trans.  E20 overdisˈcharge verb trans.  L19 overdiˈspersed adjective Ecology M20 overdiˈspersion noun Ecology M20 overdog noun colloq. E20 overdoor noun (a) † (rare (b) OE overˈdot verb trans.  Music M20 † overdrip verb trans.  L16–L19 overˈdye verb trans.  E17 overˈearly adverb & adjective LME overˈeducate verb trans.  M19 overeˈffusive adjective E20 overˈegg verb trans.  overegg the pudding , go too far in embellishing, exaggerating, or doing something: M19 overeˈmotional adjective L19 overengiˈneer verb trans.  M20 overeˈrupt verb intrans.  M20 overeˈruption noun M20 overexert /-ɪgˈzə:t , -ɛg- / verb refl.  E19 overexertion /-ɪgˈzə:ʃ(ə)n , -ɛg- / noun L18 overexpand /-ɛkˈspand / verb trans. & intrans.  M20 overexploit /-ɛkˈsplɔɪt / verb trans.  esp.  use (a natural resource) too much or too fast L19 overexploiˈtation noun E20 overˈeye verb trans.  rare L16 overˈfar adverb rare ME overˈfat adjective OE overfaˈtigue noun & verb (a) noun (b) verb trans.  E18 overˈfavour verb trans.  E17 overˈfavourable adjective LME overˈfilm verb trans.  rare L16 overˈfine adjective M16 overˈfire verb trans.  E17 overflight noun L16 overˈflood verb trans.  L18 overflush noun obsolete dial. L16 overˈflush adjective of ); also foll. by with : M19 overˈflush verb trans.  (a) (b) M17 overˈfraught adjective arch. poet. L16 overˈfree adjective M17 overˈfreight verb & noun (a) verb trans.  (b) noun M16 overfur noun E20 overˈfurnished adjective E18 overgarment noun LME overˈgaze verb trans.  rare (a) pass. (b) E17 overˈgenerous adjective M19 overˈgenerously adverb L20 overˈglad adjective LME † overglance verb trans.  L16–L19 overˈglide verb trans.  poet. ME overˈgloom verb trans.  lit. fig. L18 overˈglut verb trans.  L16 overˈgorge verb trans.  L15 overˈgrainer noun L19 overˈgraze verb trans.  overgrazed  ppl overgrazing  verbal E20 overˈgreat adjective LME overˈgreedy adjective LOE † overgreen verb trans.  rare only in L16  overhair noun L19 overˈhappy adjective L16 overˈhard adjective & adverb ME overˈhardy adjective rare ME overˈharsh adjective M17 overˈheap verb trans.  (a) (b) LME overˈhigh adjective & adverb OE overhill adjective M18 overˈhit verb trans.  (a) (b) E19 † overhold verb trans.  rare (a) (b) (c) OE–M19 overˈhorse verb trans.  (a) rare (b) overhorsed  ppl E19 overˈhoused adjective M19 overˈhunt verb trans.  M19 overhyˈdrated adjective M20 overhyˈdration noun M20 overinˈclusion noun Psychology M20 overinˈform verb trans.  rare L17 overinˈsurance noun M18 overinˈsure verb trans. & intrans.  E20 overinteˈllectual adjective M19 overinteˈllectualize verb trans.  E20 overjacket noun L19 overjet noun Dentistry overbite M20 overˈjump verb trans.  (a) rare fig. (b) E17 overˈkeep verb trans.  (a) † keep or observe too strictly;(b) E17 overˈkind adjective E17 overˈkindly adverb E17 overˈkindness noun L15 overking noun obsolete hist. ME overˈknee adjective M19 overˈknowing adjective rare M17 overˈlabour verb trans.  (a) (b) M16 overˈlard verb trans.  E17 overˈlarge adjective LME overˈlargely adverb L15 overˈlate adjective & adverb ME overˈlavish adjective L16 overˈlavishly adverb L16 † overlead verb trans.  (a) (b) (c) OE–E18 overˈlean verb trans.  M18 overˈlearn verb trans.  spec.  (Psychology L19 † overleather noun LME–M17 † overleaven verb trans.  fig. E–M17 overˈlength adjective & noun E19 overˈlenient adjective E20 overˈliberal adjective E17 † overliberality noun L17–E19 overlight noun rare E17 overˈlight adjective M16 overˈlightly adverb (a) † too easily;(b) LME overline noun spec.  (a) (b) E20 overˈline verb trans.  (a) (b) M19 overlip noun dial. ME overˈlisten verb trans.  rare E17 overˈlive verb rare (a) verb trans. (b) verb intrans. OE overˈlock verb (a) verb trans. (b) (c) verb trans. & intrans. M17 overlocker noun E20 overˈlong adverb & adjective (a) adverb (b) adjective ME overˈloud adjective & adverb OE overloup noun Scot. N. English (a) (b) transf. E18 overˈlove noun & verb (a) noun (b) verb trans. & intrans.  LOE overˈlow adjective ME † overlusty adjective L15–E17 overmantel noun L19 overˈmantle verb trans.  rare M17 overˈmany adjective ME overˈmark verb trans.  (a) † rare (b) M16 overˈmast verb trans.  E17 overmatter noun L19 overˈmeasure adverb, noun, & verb (a) adverb (b) noun (c) verb trans.  ME overˈmickle adjective & adverb Scot. N. English OE overmitt noun L20 overˈmodest adjective M17 overˈmodestly adverb E17 overˈmodulate verb trans. & intrans.  Electronics E20 overmoduˈlation noun Electronics E20 overmost adjective dial. ME overˈmount verb rare (a) verb trans. (b) † verb intrans. LME overˈname verb trans.  rare L16 overˈnet verb trans.  (a) (b) M19 † overoffice verb trans.  rare only in E17  overoˈfficious adjective M17 overoˈfficiousness noun E17 overˈold adjective LME overˈoptimism noun M20 overoptiˈmistic adjective M20 overoptiˈmistically adverb M20 overˈpark verb intrans.  US M20 overˈparted adjective L16 overˈpartial adjective L16 overparˈticular adjective M19 overˈpedal verb intrans. & trans.  M20 overˈpeer verb trans.  (a) fig. (b) M16 overˈpeopled adjective L17 † overperch verb trans.  rare only in L16  overperˈsuade verb trans.  E17 overperˈsuasion noun M18 overˈpicture verb trans.  E17 overˈpitch verb trans.  (a) Cricket (b) fig. M19 overˈplease verb trans.  E17 overˈply verb trans.  M17 overˈpole verb trans.  (a) rare (b) Metallurgy pole  verb 1  5 E18 † overpost verb trans.  rare lit. fig. only in L16  overpoˈtential noun overvoltage  1 , 2 E20 overˈpreach verb trans.  (a) † preach beyond (a person's understanding);(b) M17 overpreˈcise adjective E17 overpreˈcision noun E20 overpreˈscribe verb trans. & intrans.  M20 overˈprivileged adjective & noun M20 overˈprize verb trans.  (a) (b) † exceed in value:L16 overproˈduce verb trans.  (a) (b) L19 overproˈduction noun (a) (b) E19 overproof adjective & noun E19 overˈproud adjective LOE overˈpublicize verb trans.  M20 overpunch noun & verb trans.  Computing M20 overˈpunish verb trans.  M17 overˈqualified adjective M20 overquantity noun rare E17 overˈquick adjective M16 † overrake verb trans.  L16–M19 overˈrank adjective rare obsolete LOE overˈrapid adjective M19 overˈrash adjective rare M16 overˈrashly adverb rare M17 over-ˈread verb (a) † verb trans. (b) verb intrans. LOE over-ˈreadiness noun L19 over-ˈready adjective E17 overˈreckon verb trans.  (a) (b) E17 overreˈcord verb trans.  (a) (b) M20 over-reˈfreshed adjective joc. E20 overˈrent verb trans.  L16 over-repreˈsent verb trans.  E20 overˈrich adjective L16 overˈrider noun M20 overˈright adverb & preposition obsolete dial. (a) (b) LME overˈrigid adjective E17 overˈrigorous adjective L16 overˈripe adjective (a) (b) fig. L17 overˈripen verb trans.  rare L16 overˈripeness noun E19 overˈrise verb trans.  LME overˈrisen adjective M17 overˈroast verb trans.  E16 overˈroll verb trans.  (a) (b) E16 overˈroof verb trans.  E19 oversales noun pl.  L19 overˈsalt adjective LME overˈsalt verb trans.  L16 overˈsaturated adjective Geology E20 oversatuˈration noun M20 overˈsay verb rare (a) verb intrans. (b) verb trans. L15 overscan noun Computing Electronics L20 overˈscore verb trans.  (a) (b) M19 overˈscrupulous adjective M16 overˈscrupulously adverb L19 overˈscrupulousness noun M18 † overscutched adjective L16–E19 overself noun L19 † oversensible adjective L16–E19 overˈsensitive adjective M19 oversensiˈtivity noun M20 overˈsexed adjective L19 overˈshade verb trans.  rare OE overˈsharp adjective L15 overˈsharpness noun M19 overˈshine verb trans.  (a) (b) OE overshoe noun E19 over-ˈshoe adverb L16 overˈshort adjective ME overˈshroud verb trans.  E16 † overskip verb trans.  LME–L17 overskirt noun L19 oversleeve noun M19 overˈslow adjective LME overslung adjective M20 overˈsmoke verb (a) verb trans. rare (b) verb intrans. M19 overˈsnow verb trans.  poet. rare obsolete L16 overˈsoar verb trans.  L16 oversoˈlicitous adjective M17 oversoˈlicitude noun M18 overˈsoon adverb (a) † too quickly or readily;(b) ME oversoˈphisticated adjective E20 oversoul noun M19 overˈsparred adjective L19 overspecialiˈzation noun M20 overˈspecialize verb intrans.  in  a particular endeavour) E20 overspeˈcific adjective M20 overspecifiˈcation noun M20 overˈspecify verb trans.  M20 overspeech noun M19 overspray noun M20 overˈspring verb trans.  LME overˈsprinkle verb trans.  M16 overˈsprung ppl E20 overˈsquare adjective M20 overˈstaff verb trans.  M20 overˈstate verb trans.  E19 overstatement noun E19 overˈstay verb trans.  overstay one's welcome : see welcome  noun 2  1 M17 overstayer noun L20 overˈstimulate verb trans.  L18 overstimuˈlation noun M19 † overstink verb trans.  rare only in E17  overstorey noun M20 † overstrait adjective ME–M18 overˈstream verb trans.  E17 overˈstrew verb trans.  (a) (b) L16 overstroke noun Swimming E20 overˈstrong adjective ME overˈstudy verb & noun (a) verb trans. & intrans. (b) noun M17 overˈstuff verb trans.  M20 overˈstuffed adjective (a) (b) gen. E20 oversubˈscribe verb trans.  L19 oversubˈscription noun L19 overˈsubtle adjective L15 overˈsubtlety noun M19 overˈsum verb trans.  rare E17 oversuˈsceptible adjective M20 overˈswarm verb (a) verb intrans. (b) verb trans. L16 overˈsweep verb trans.  E17 overˈsweet adjective L16 overˈswim verb trans.  OE overswing noun (a) (b) Gymnastics E20 overˈtalk verb (a) verb intrans. & refl. (b) verb trans. M17 overˈtask verb trans.  E17 overˈtedious adjective L16 overˈteem verb (a) verb intrans. (b) verb trans. E17 overˈtell verb trans.  E16 overˈtender adjective LME overˈterve verb obsolete Scot. ME overˈtilt verb trans.  LME overˈtip verb trans. & intrans.  E20 overˈtoil verb trans.  L16 overˈtopple verb trans. & intrans.  M16 overˈtorture verb trans.  L16 overˈtower verb trans.  M17 overˈtrace verb trans.  (a) (b) LME overˈtrade verb intrans. & trans.  Commerce E17 overˈtrain verb trans. & intrans.  L19 overˈtrample verb trans.  L16 overˈtrap verb trans.  M20 overˈtrawl verb trans.  E20 overtrick noun Bridge E20 overˈtrim verb trans.  (a) Sailing (b) L16 † overtrip verb trans.  rare only in L16  overtrousers noun pl.  L20 overˈtrow noun rare (a) (b) OE overˈtrump verb (a) verb trans. & intrans. Bridge (b) verb trans. fig. M18 overˈtrust noun & verb (a) noun (b) verb intrans. & trans.  ME overˈtumble verb (a) † verb intrans. (b) verb trans. poet. LME overvaluˈation noun E17 overvalue noun (a) † excess or surplus of value;(b) L16 overˈvalue verb trans.  (a) (b) L16 overˈvault verb trans.  E17 overˈveil verb trans.  poet. L16 overˈventilate verb trans. & intrans.  hyperventilate  verb E20 overventiˈlation noun hyperventilation E20 overˈviolent adjective L16 overˈvulcanize verb trans.  E20 overˈwalk verb (a) verb trans. (b) refl. M16 overˈwander verb trans.  rare poet. M16 overward noun L15 overˈwarm adjective E18 overˈwatch verb trans.  (a) (b) † (rare (c) E16 overˈwatching noun M16 overwater adjective (a) (b) E20 overˈwater verb trans.  (a) (b) (c) rare M17 overˈweak adjective M16 overˈwear verb trans.  L16 overˈweary verb & adjective (a) verb trans.  (b) adjective L15 † overweathered ppl rare only in L16  overˈweep verb trans.  poet. (a) rare (b) L16 overˈweigh verb trans.  (a) (b) ME overˈwell adverb ME overˈwet adjective & verb (a) adjective (b) verb trans.  E17 overˈwilling adjective L16 overˈwin verb trans.  OE overwind noun L19 overˈwind verb trans.  LME overˈwinder noun L19 overˈwing verb trans.  (a) † Military (b) poet. E17 overˈwinter verb (a) verb intrans. (b) verb intrans. (c) verb trans. OE overˈwise adjective LME overˈwisely adverb M19 overwood noun overstorey L19 overword noun Scot. esp.  the refrain of a song: E16 overworld noun (a) (b) (c) underworld ):M19 overˈworn adjective (a) fig. rare (b) (c) M16 overˈwrap verb trans.  E19 overˈyear adverb & adjective dial. LME overˈzeal noun M18 overˈzealous adjective M17  over- 
prefix .
above: Overhead  = above the head .
higher in rank; superior: Overlord  = superior lord .
across: Overseas  = across the seas .
too; too much; too long: Overcrowded  = too crowded . Overburden  = burden too much .
above normal; extra: Oversize  = above normal size . Overtime  = extra time .
being above; worn as an outer covering: Overcoat  = coat worn as an outer covering .
[< over ]
 If an adjective beginning with over-  is not specially defined in this dictionary, its meaning may be learned by putting  too  in place of  over . Some such words are:   word-list-over--1  If a noun beginning with over  is not specially defined in this dictionary, its meaning may be learned by putting  too much  or  excessive  in place of  over . Some such words are:   word-list-over--2  If a verb beginning with over  is not specially defined in this dictionary, its meaning may be learned by putting _____   too much  in place of  over _____ . Some such words are:   word-list-over--3 
over- 
(US ) IPA: /ˈoʊvɚ/  Prefix   above, or higher superior excessively  overkind, overloud    surrounding or covering  overcoat, overpack, overshoe    Etymology From Middle English over- , from Old English ofer-  (“over- ”), from Proto-Germanic *ubar-  (“over- ”). Cognate with Dutch  over- , German  über- , Danish  over- , Swedish  över- . More at over .
Usage notes Comparison of relative combinations (two separate words, hyphenated or a single compound word) does not easily fit a pattern; terms become compound words as they are broadly accepted.
Derived terms ► 
前缀:over-   ① 表示”过度,过分” 
overstudy  n.用功过度(over+study学习) 
overwork  n.过度劳累(over+work工作) 
overact  v.表演过火(over+act演出) 
overdose  n.药物过量(over+dose剂量) 
overproduction  n.生产过度(over+productoin生产) 
overcrowded  a.挤满的(over+crowded拥挤的) 
② 表示”在……之上” 
overlap  n\\v.重叠(over+lap交叉→[大腿]交叉→重叠) 
iverride  v.推翻,不理会(over+ride骑→骑在上面→推翻[下面的]) 
overwhelm  v.压倒;泛滥(over+whelm推翻→翻过来→压倒) 
overbridge  n.天桥(over+bridge桥→上面的桥→天桥) 
overlook  v.俯视;疏忽(over+look看→在上面看→俯视,z上申为疏忽) 
overcoat  n.外套(over+coat衣服→在衣服上的衣服→外套) 
overcome  v.战胜,克服(over+come来→来到上面→战胜) 
③表示“翻转” 
overturn  颠覆(over+rurn转→翻转) 
overthrow  推翻(over+throw扔→扔翻了→推翻) 
overhaul  彻底检修(over+haul拉→拉过去检修)
前缀:over-   1、过度、太甚 
overstudy  用功过度 
overpraise  过奖 
overtalk  过分多言 
overpay  多付(钱款) 
overuse  使用过度 
overdrink  饮酒过甚 
overwork  过度劳累 
overproduction  生产过剩 
2、在上、在外、从上、越过 
overbridge  跨线桥,天桥 
oversea  (s) 海外的 
overcoat  外套,外衣 
overleap  跳过 
overshoe  套鞋 
overlook  俯视 
overfly  飞越 
3、颠倒、反转 
overturn  倾覆,倾倒 
overthrow  推翻 
overset  翻转,翻倒
前缀:over-  【词根含义】:过分,在…上
【同源单词】:overcast , overcome , overdraft , overdraw , overdue