jargon

1. N-UNCOUNT You use jargon to refer to words and expressions that are used in special or technical ways by particular groups of people, often making the language difficult to understand. 行話

The manual is full of the jargon and slang of self-improvement courses. 該手冊中滿是自我完善課程的行話和俚語。

2. V to use or speak in jargon 說行話; 使用術(shù)語

3. N a golden yellow, smoky, or colourless variety of zircon 黃鋯英石 (Also jargoon)[mineralogy] [RARE]