(1):

(n.) The body from which the soul has departed; a corpse; especially, the body, or some part of the body, of a deceased saint or martyr; - usually in the plural when referring to the whole body.

(2):

(n.) Hence, a memorial; anything preserved in remembrance; as, relics of youthful days or friendships.

(3):

(n.) That which remains; that which is left after loss or decay; a remaining portion; a remnant.