the quality or state of being strong; ability to do or to bear; capacity for exertion or endurance, whether physical, intellectual, or moral; force; vigor; power; as, strength of body or of the arm; strength of mind, of memory, or of judgment.-power to resist force; solidity or toughness; the quality of bodies by which they endure the application of force without breaking or yielding; -- in this sense opposed to frangibility; as, the strength of a bone, of a beam, of a wall, a rope, and the like.-power of resisting attacks; impregnability.-that quality which tends to secure results; effective power in an institution or enactment; security; validity; legal or moral force; logical conclusiveness; as, the strength of social or legal obligations; the strength of law; the strength of public opinion; strength of evidence; strength of argument.-one who, or that which, is regarded as embodying or affording force, strength, or firmness; that on which confidence or reliance is based; support; security.-force as measured; amount, numbers, or power of any body, as of an army, a navy, and the like; as, what is the strength of the enemy by land, or by sea?-vigor or style; force of expression; nervous diction; -- said of literary work.-intensity; -- said of light or color.-intensity or degree of the distinguishing and essential element; spirit; virtue; excellence; -- said of liquors, solutions, etc.; as, the strength of wine or of acids.-a strong place; a stronghold.-to strengthen.