Meaning of “expose” - Learner’s Dictionary

expose

verb [ T ] uk us /ɪkˈspəʊz/
HIDDEN THING

to remove what is covering something so that it can be seen:

He removed the bandage to expose the wound.
Our bodies need to be exposed to sunlight in order to make vitamin D.
BAD THING

B2 to make public something bad or something that is not honest:

be exposed to sth

B2 to experience something or be affected by something because you are in a particular situation or place:

It was the first time I'd been exposed to violence.
PHOTOGRAPHY

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