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Related to give of: give up
give of (oneself or something)
To dedicate or devote oneself or something to some cause or goal. I'm impressed that the CEO gave of his millions so freely. No wonder she's exhausted—she really gives of herself every time she takes the stage.
1. To devote or contribute something: She really gave of her time to help.
2. To devote oneself to something. Used reflexively: They give of themselves to improve the quality of education.