This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. One that gives: a giver of gifts.

n. A donor or contributor. Often used in combination: almsgivers.

n. One who gives; a donor or contributer.

n. One who gives; a donor; a bestower; a grantor; one who imparts or distributes.

n. One who gives; a donor; a bestower; a granter; one who imparts, dispenses, distributes, or contributes.

n. someone who devotes himself completely

n. person who makes a gift of property

"These two elements feed off each other and are so intertwined that the giver is at least a much responsible for the situation as the reciever."

taker   

good person   

Indian giver   

donor    bestower    grantor    presenter    donator    conferrer    granter    contributor    contributer   

Liver    deliver    downriver    liver    quiver    river    shiver    sliver    upriver   

benefactor    dispenser    bestower    donor    hospitality