Meaning of “stir” - Learner’s Dictionary

stir

verb us uk /stɜːr/ present participle stirring, past tense and past participle stirred
Add milk to the mixture and stir until smooth.Carefully remove the lid, then stir the paint.I've been stirring the sauce for ages.You shouldn't have stirred the mixture before it set.Stir the custard gently using a wooden spoon.
MIX [ T ]

B1 to mix food or liquid by moving a spoon round and round in it:

Stir / the mixture until it is smooth.
MOVE [ I, T ]

to move slightly or make someone move slightly:

The baby stirred in its sleep.
FEEL [ T ]

to make someone feel a strong emotion:

The case has stirred / great anger among the public.

See also

(Definition of “stir verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)