1. (尤指竞赛中的)难题，棘手的问题
A teaser is a difficult question, especially one in a competition.
2. 爱戏弄别人的人
A teaser is someone who makes fun of people in a slightly cruel way.
1. a device for teasing wool
e.g. a teaser is used to disentangle the fibers
2. a flat at each side of the stage to prevent the audience from seeing into the wings
Synonym: tormentertormentor
3. an attention-getting opening presented at the start of a television show
4. a particularly baffling problem that is said to have a correct solution
e.g. he loved to solve chessmate puzzles
that's a real puzzler
Synonym: puzzlepuzzlermystifier
5. an advertisement that offers something free in order to arouse customers' interest
6. someone given to teasing (as by mocking or stirring curiosity)
7. a worker who teases wool