vocabulary
n.
1530s, "list of words with explanations," from Medieval Latin vocabularium "a list of words," from Latin vocabulum "word, name, noun," from vocare "to name, call" (see voice, n.). Meaning "range of words in the language of a person or group" is first attested 1753.
〔蒋〕[voo，vok声音，叫喊，-ary名词后缀] 词汇，字汇，语汇，词汇量
〔李〕[vocabul (= vocable) = word 词，语；-ary n. = thing 物→“whole body of words词语的整体”→] n. words used in a language or by a person, etc.一种语言的词汇；（一个人等的）词汇量