Meaning of “vary” - Learner’s Dictionary

vary

verb uk us /ˈveəri/
BE DIFFERENT [ I ]

B2 If things of the same type vary, they are different from each other:

Roses vary widely in size and shape.
CHANGE [ I ]

B2 to change:

Temperatures vary depending on the time of year.
INTENTIONALLY CHANGE [ T ]

B2 to often change something that you do:

I try to vary what I eat.

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