Neologism

[nɪ'ɒlədʒɪz(ə)m] or [nɪ'ɑlədʒɪzəm]

(noun.) the act of inventing a word or phrase.

(noun.) a newly invented word or phrase.

Checker: Stella--From WordNet

(n.) The introduction of new words, or the use of old words in a new sense.

(n.) A new word, phrase, or expression.

(n.) A new doctrine; specifically, rationalism.

Edited by Jeremy

n. [1]. New word or phrase.[2]. Neology, use of new words or phrases.

Editor: Rena