Newly-created words or expressions, or words that have taken on

Newly-created words or expressions, or words that have taken on new meanings are（ ）
A、slang
B、argot
C、neologisms
D、​archaisms
【正确答案】：C
【题目解析】：新词是新创造的词语或表达方式，或具有新含义的词。