What does いわゆる mean?
いわゆる is a Japanese adjective meaning “the so-called, so-to-speak” in English. It is written as いわゆる in hiragana, and iwayuru in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
これがいわゆる「天ぷら」というものです。
This is what we call "tempura".