neologism

1. N-COUNT A neologism is a new word or expression in a language, or a new meaning for an existing word or expression. (语言的)新词汇或新表意法; 旧词新意[技术]

The newspaper used the neologism "dinks," Double Income No Kids. 这份报纸使用了新词汇"dinks"—双收入无小孩的家庭。