mouse

(noun) any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails.

(noun) a swollen bruise caused by a blow to the eye. Synonyms: shiner, black eye.

(noun) person who is quiet or timid.

(noun) 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. Synonyms: computer mouse. Example: "A mouse takes much more room than a trackball."

(verb) to go stealthily or furtively. Synonyms: sneak, creep, pussyfoot. Example: "..stead of sneaking around spying on the neighbor's house."

(verb) manipulate the mouse of a computer.