know sth from sth
— phrasal verb with know uk/nəʊ/us/noʊ/verb knew, known
to know the difference between two things and therefore be able to recognize either, used especially to mean that you have a good knowledge and understanding of a particular subject:
Computer expert? He doesn't know a mouse from a modem! (= He knows nothing about computers.)
Thesaurus: synonyms and related words
Learning & knowing
- assimilate
- audit
- autodidact
- blended learning
- bone up
- brain training
- by-heart
- deskill
- feel
- gen up
- hear tell (of) idiom
- know better (than sb) idiom
- knowable
- mug
- mug (sth) up
- pick sth up
- quick
- reskill
- revision
- tell
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