hear about
phr. v..phr. v.. to get information or news about something or someone.
phr. v.. to receive information, news, or updates regarding a specific subject, person, or event; typically implies passive reception of information via a third party or media.
Did you hear about the new restaurant downtown?
I was shocked to hear about their engagement because they only met last month.
Investors were anxious to hear about the quarterly earnings report before deciding whether to sell their remaining shares in the company.
usually followed by a noun or a gerund; often used in the past tense or present perfect.
contrast with 'hear of' (which implies simple awareness of existence) and 'hear from' (which implies direct communication from a person).
I heard about that he resigned.I heard that he resigned.do not use 'about' when the information is introduced by a 'that' clause; use 'about' only with a noun or gerund.