Synonyms: subscriber, contributor
Definition: someone who contributes (or promises to contribute) a sum of money
Similar words: donor, conferrer, giver, presenter, bestower
Definition: person who makes a gift of property
Synonyms: subscriber, reader
Definition: someone who contracts to receive and pay for a service or a certain number of issues of a publication
Synonyms: ratifier, endorser, subscriber, indorser
Definition: someone who expresses strong approval
Similar words: supporter, friend, admirer, protagonist, booster, champion
Definition: a person who backs a politician or a team etc.
Usage: all their supporters came out for the game; they are friends of the library