SLa new word or expression, or a word used with a new meaning 新词；新表达方式；旧词新义SYN coinage
Examples from the Corpus
neologism• The novel displayed Rolfe's fondness for neologism, verbal sumptuousness, and quirky spelling in its best light.• So the word is a relative neologism, and therefore lends itself easily to personal interpretations, for good or ill.
Originneologism
(1800-1900)Frenchnéologisme, from Greekneo- ( → NEO-) + -logos“word”