Definition of defeat

• v. t. - To undo; to disfigure; to destroy.
• v. t. - To render null and void, as a title; to frustrate, as hope; to deprive, as of an estate.
• v. t. - To overcome or vanquish, as an army; to check, disperse, or ruin by victory; to overthrow.
• v. t. - To resist with success; as, to defeat an assault.
• v. - An undoing or annulling; destruction.
• v. - Frustration by rendering null and void, or by prevention of success; as, the defeat of a plan or design.
• v. - An overthrow, as of an army in battle; loss of a battle; repulse suffered; discomfiture; -- opposed to victory.