:: a small animal with fur and a long, thin tail
:: any of numerous small rodents (as of the genus Mus) with pointed snout, rather small ears, elongated body, and slender tail
The house was infested with mice and rats.

:: a small piece of equipment connected to a computer that you move with your hand to control what the computer does (камп'ютарная мыш)
:: (pl. also mouses) a small mobile manual device that controls movement of the cursor and selection of functions on a computer display
He moved the mouse to click on the icon.

:: a timid person (нясмелы, баязлівы, палахлівы, сарамлівы)

mouse over
:: to use a mouse to position a cursor over (a specific location or element on a computer screen) without clicking the mouse's button

мышь, мышка