Meaning of “stress” - Learner’s Dictionary

stress

verb uk us /stres/
EMPHASIZE [ T ]

B2 to emphasize something in order to show that it is important:

[ + (that) ] I stressed that this was our policy.
WORRY [ I ] informal

to be worried:

Stop stressing about tonight - it'll be fine.

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