teaser (Noun) — A worker who teases wool.
teaser (Noun) — Someone given to teasing (as by mocking or stirring curiosity).
teaser (Noun) — An advertisement that offers something free in order to arouse customers' interest.
teaser (Noun) — A particularly baffling problem that is said to have a correct solution. ex. "he loved to solve checkmate teasers"
teaser (Noun) — An attention-getting opening presented at the start of a television show.
teaser (Noun) — A flat at each side of the stage to prevent the audience from seeing into the wings.
teaser (Noun) — A device for teasing wool. ex. "a teaser is used to disentangle the fibers"