(1):

(n.) The state or quality of being entire or complete; wholeness; entireness; unbroken state; as, the integrity of an empire or territory.

(2):

(n.) Unimpaired, unadulterated, or genuine state; entire correspondence with an original condition; purity.

(3):

(n.) Moral soundness; honesty; freedom from corrupting influence or motive; - used especially with reference to the fulfillment of contracts, the discharge of agencies, trusts, and the like; uprightness; rectitude.