家傳戶曉 [－传户晓]

Jyutping gaa1 cyun4 wu6 hiu2
Pinyin jiā chuán hù xiǎo

Definitions (Wiktionary)
  1. phrase, idiomatic
    known to every household; ubiquitously known; widespread; extremely well-known
    (syn.) 家喻戶曉, 家喻户晓