Source : Webster's Revised Unabridged Dictionary (1913)

Bruise \Bruise\ (br[udd]z), v. t. [imp. & p. p. {Bruised}
   (br[udd]zd); p. pr. & vb. n. {Bruising}.] [OE. brusen,
   brisen, brosen, bresen, AS. br[=y]san or fr. OF. bruiser,
   bruisier, bruser, to break, shiver, perh. from OHG.
   brochis[=o]n. Cf. {Break}, v. t.]
   1. To injure, as by a blow or collision, without laceration;
      to contuse; as, to bruise one's finger with a hammer; to
      bruise the bark of a tree with a stone; to bruise an apple
      by letting it fall.

   2. To break; as in a mortar; to bray, as minerals, roots,
      etc.; to crush.

            Nor bruise her flowerets with the armed hoofs.
                                                  --Shak.

   Syn: To pulverize; bray; triturate; pound; contuse.

Bruise \Bruise\, v. i.
   To fight with the fists; to box.

         Bruising was considered a fine, manly, old English
         custom.                                  --Thackeray.

Bruise \Bruise\, n.
   An injury to the flesh of animals, or to plants, fruit, etc.,
   with a blunt or heavy instrument, or by collision with some
   other body; a contusion; as, a bruise on the head; bruises on
   fruit.

         From the sole of the foot even unto the head there is
         no soundness in it; but wounds, and bruises. --Isa. i.
                                                  6.

Source : WordNet®

bruise
     n : an injury that doesn't break the skin but results in some
         discoloration [syn: {contusion}]

bruise
     v 1: injure the underlying soft tissue of bone of; "I bruised my
          knee" [syn: {contuse}]
     2: hurt the feelings of; "She hurt me when she did not include
        me among her guests"; "This remark really bruised me ego"
        [syn: {hurt}, {wound}, {injure}, {offend}, {spite}]
     3: break up into small pieces for food preparation; "bruise the
        berries with a wooden spoon and strain them"
     4: damage (plant tissue) by abrasion of pressure; "The customer
        bruised the strawberries by squeezing them"