Meaning of “she'd” - Learner’s Dictionary

she'd

us uk /ʃiːd/
I could see that she'd been crying.She reeled off a list of all the countries she'd been to.She mentioned in passing that she'd seen Stuart.I told her she'd upset John and she was mortified.She let on to a friend that she'd lied in court.
SHE HAD

short for she had:

By the time I got there, she'd fallen asleep.
SHE WOULD

short for she would:

She knew that she'd be late.

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