Micromys minutus, a species of the sub-family Murinae (Old World rats and mice). / A New World mouse of the genus Reithrodontomys.

(idiomatic) Of inferior quality.

The most famous Disney cartoon character, an anthropomorphic mouse with a falsetto voice and a cheerful disposition.

A relationship in which two parties closely monitor and challenge one another in a suspicious or self-protective manner, often because each party is attempting to gain an advantage over the other.

Alternative form of cat-and-mouse

A children's game in which one player (the "cat") attempts to break through a ring of players to catch another player (the "mouse") in the centre.

The universally common mouse of the species Mus musculus.

(Britain) A mouse pad.

(US, Australia, computing) A pad with surface used to enhance the movement of a computer mouse.

(Canada, US) A small vole such as the meadow vole. / One of several species of mice in genus Apodemus found in Eurasia and Africa. / One of several species of mice in genus Akodon found in South America.