Neoterism refers to the use of new words or phrases in language. There are many synonyms for neoterism which can be used depending on the context. One synonym for neoterism is coinage which refers to the creation of new words. Another word that can be used in place of neoterism is neology, which is the study of new words and their meanings. Additionally, innovation is a synonym that can be used to describe the introduction of new words or phrases. Other words that can be used include novelty, modernism, and fresh terminology. These words are often used in the context of language and literature, especially when discussing the evolution of language over time.