prep·o·si·tion
noun/ˌprepəˈzɪʃn/
/ˌprepəˈzɪʃn/
(grammar)- a word or group of words, such as in, from, to, out of and on behalf of, used before a noun or pronoun to show place, position, time or method
Topics Languagea1介词 Word Originlate Middle English: from Latin praepositio(n-), from the verb praeponere, from prae ‘before’ + ponere ‘to place’.