1. (n.) One who subscribes; one who contributes to an undertaking by subscribing.

2. (n.) One who enters his name for a paper, book, map, or the like.

Maecenas Santa Claus almoner almsgiver angel approver assignor awarder backer bestower certifier cheerful giver conferrer confirmer consignor contributor cosignatory cosigner donator donor endorser fairy godmother feoffor financer funder giver grantor guarantor imparter insurer lady bountiful notary notary public party patron patroness philanthropist presenter ratifier settler signatory sugar daddy supporter testate testator testatrix underwriter upholder vouchsafer