From The Collaborative International Dictionary of English v.0.44 [gcide]:
1. To yield to the power of another; to give or deliver up possession of (anything) upon compulsion or demand; as, to surrender one's person to an enemy or to an officer; to surrender a fort or a ship.
4. (Law) To yield; to render or deliver up; to give up; as, a principal surrendered by his bail, a fugitive from justice by a foreign state, or a particular estate by the tenant thereof to him in remainder or reversion.
From WordNet (r) 2.0 [wn]:
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