Real Dictionary

stir
verb: If something stirs or if the wind stirs it, it moves gently in the wind.
verb: If you do not stir from a place, you do not move from it.
verb: If you stir a liquid or other substance, you move it around or mix it in a container using something such as a spoon.
verb: If you stir, you move slightly, for example because you are uncomfortable or beginning to wake up.

stir in American English 1
to move, shake, agitate, etc., esp. slightly
intransitive verb: to move, esp. slightly or lightly
noun: the act of stirring or moving
transitive verb: to move one's hand or an implement continuously or repeatedly through (a liquid or other substance) in order to cool, mix, agitate, dissolve, etc., any or all of the component parts

stir in American English 2
a prison
noun: prison

stir in British English 1
verb: to move an implement such as a spoon around in (a liquid) so as to mix up the constituents

stir in British English 2
noun

Stir. in British English
abbreviation for: Stirlingshire