Tipster

(n.)

1. a person who tells you, oftern in exchange for money, which horse is likely to win a race, so that you can bet on it and win money

提供赛马情报的人（常指贩卖情报者）

2. (especially NAmE) a person who give information to the police about a crime or criminal

（犯罪行为等的）举报者，告密者

Xinyi Translation Studio