1.Definition: a horse kept at an inn or post house for use by mail carriers or for rent to travelers

Category: Animals

2.Definition: a sign posted in a public place as an advertisement

"A poster advertised the coming attractions"

Related Noun(s):bill, card, notice, placard

Category: General

3.Definition: someone who pastes up bills or placards on walls or billboards

Related Noun(s):bill poster, bill sticker

Category: People