expression
it does not mean that ...; it is not the case that
Used to deny a possible interpretation or to clarify that something is not necessarily true. Often follows a clause in plain form. Equivalent to 訳ではない, but more colloquial.
See also: 訳ではない
お金があれば幸せになれるわけじゃない。
Having money doesn't necessarily mean you can be happy.
彼が言ったことが全部正しいわけじゃない。
It's not the case that everything he said is correct.