not hear of something Definition

hear
verb heard, hearing

tr & intr
1. To perceive (sounds) with the ear.
2. To listen to something

Example: Did you hear what he said?
Thesaurus: listen, heed, attend to, hearken to, eavesdrop on.
intr
3. To be told about it or informed of it.

Form: hear about something (usually)
Form: hear of something
intr
4. To be contacted by them, especially by letter or telephone.

Form: hear from someone (usually)
5. law.
To listen to and judge (a case).

Derivative: hearer
noun

Idiom: hear! hear!

An expression of agreement or approval.

Idiom: hear tell (hear tell of something)

dialect
To be told about it.

Idiom: not hear of something

Not to allow it to happen.
Example: They would not hear of it
Thesaurus: reject, refuse, disallow, decline, turn a deaf ear to.

Etymology: Anglo-Saxon hieran.

Phrasal Verb: hear someone out

To listen to them until they have said all they wish to say.