hear of

/HH IH1 R AH0 V/
verb
  1. 1

    To become aware of (a subject, person) through second-hand knowledge, or not through personal experience.

    โ€œI first heard of the Electra complex when I was studying psychology.โ€

  2. 2

    (with "won't", "will not", "wouldn't", etc.) To permit or tolerate.

Source: https://en.wiktionary.org/wiki/hear%20of