teaser

UK: /ˈtiːzə/ US: (tē′zər)

WordReference Random House Unabridged Dictionary of American English © 2025

teas•er  (tē′zər), n. 

1. a person or thing that teases.
2. Show Business [Theat.] a drapery or flat piece across the top of the proscenium arch that masks the flies and that, together with the tormentors, forms a frame for the stage opening.
3. Printing, Journalism kicker (def. 9).
4. an advertisement that lures customers or clients by offering a bonus, gift, or the like.
5. Radio and Television, Show Business, Slang Terms [Television Slang.] tease (def. 5).

• 1350–1400; Middle English teser machine for teasing wool; see tease, -er¹

Collins Concise English Dictionary © HarperCollins Publishers::

teaser / ˈtiːzə/ noun

1. a person who teases
2. a preliminary advertisement in a campaign that attracts attention by making people curious to know what product is being advertised
3. a difficult question