promoter

As nouns the difference between keeper and promoter

is that keeper is one who keeps something while promoter is one who promotes, particularly with respect to entertainment events or goods.

As nouns the difference between promoter and lobbyist

is that promoter is one who promotes, particularly with respect to entertainment events or goods while lobbyist is a person remunerated to persuade (to lobby) politicians to vote in a certain way or otherwise use their office to effect a desired result.

As nouns the difference between booster and promoter

is that booster is something that boosts while promoter is one who promotes, particularly with respect to entertainment events or goods.

Promoter is a related term of promotable.

As a noun promoter

is one who promotes, particularly with respect to entertainment events or goods.

As an adjective promotable is

able to be promoted; eligible for promotion.