There are 2 main definitions of see through in English:

see through1

Not be deceived by; detect the true nature of: he can see through her lies and deceptions
More example sentences
  • Of course, the electorate are increasingly seeing through the lies and deceit of Labour.
  • Only by knowing his true nature was it possible to see through his gentlemanly veil.
  • It amazes me how they can obfuscate or even lie and believe people won't see through them.
Synonyms
understand, get/have the measure of, read like a book
informal be wise to
have someone's number (about)
See parent entry: see

Definition of see through in:

There are 2 main definitions of see through in English:

see-through2

Syllabification: see-through

adjective

(Especially of clothing) translucent: this shirt’s a bit see-through when it’s wet
More example sentences
  • Mom comes downstairs minutes later with a short, short miniskirt and a see-through shirt.
  • The latest collection includes delicate see-through dresses and tops featuring raw hems and ruche detailing.
  • She also wore a pink see-through sweater with a black tank underneath.
Synonyms

Definition of see through in: