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. 行话

The manual is full of the jargon and slang of self-improvement courses. 该手册中满是自我完善课程的行话和俚语。

2. V to use or speak in jargon 说行话; 使用术语

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