-illion

Suffix

Combined with Latin prefixes for names of integers in order to form names of powers of a million or of a thousand greater than 1,000,000. Thus we have the names billion, trillion, etc.
Added to various nonsense syllables to indicate an arbitrarily very large number.

Etymology

Back-formation from million, billion, trillion, quadrillion, each from French.

Usage notes

The words formed by combining the Latin prefix for the name of an integer () with this suffix may mean or depending on national practices. Hence billion can mean “million million” or “thousand million”. See the usage notes at Wiktionary’s appendix on numbers for more information.

Derived terms

Category:English words suffixed with -illion

词汇	-illion
词根词缀	Wiktionary -illion Suffix Combined with Latin prefixes for names of integers in order to form names of powers of a million or of a thousand greater than 1,000,000. Thus we have the names billion, trillion, etc. Added to various nonsense syllables to indicate an arbitrarily very large number. Etymology Back-formation from million, billion, trillion, quadrillion, each from French. Usage notes The words formed by combining the Latin prefix for the name of an integer () with this suffix may mean or depending on national practices. Hence billion can mean “million million” or “thousand million”. See the usage notes at Wiktionary’s appendix on numbers for more information. Derived terms Category:English words suffixed with -illion See also Indefinite and fictitious numbers on Wikipedia.
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-illion

Suffix

Etymology

Usage notes

Derived terms

See also