teaser vs worker

teaser and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
teaser	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of teaser; that is, worker is a word with a broader meaning than teaser:

teaser (noun)	worker (noun)
a flat at each side of the stage to prevent the audience from seeing into the wings	sterile member of a colony of social insects that forages for food and cares for the larvae
a device for teasing wool	a person who works at a specific occupation
a particularly baffling problem that is said to have a correct solution	a member of the working class (not necessarily employed)
an advertisement that offers something free in order to arouse customers' interest	a person who acts and gets things done
an attention-getting opening presented at the start of a television show
someone given to teasing (as by mocking or stirring curiosity)
a worker who teases wool