WordNet sense 1 (a swollen bruise caused by a blow to the eye):

shiner, black eye

WordNet sense 2 (a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad):

computer mouse

WordNet sense 3 (to go stealthily or furtively):

creep, pussyfoot, sneak