American English
/ˈnɑ.lɪʤ/
2 syllables · Stress the first syllable.
The facts and information that you have learned about a subject or about the world.
Practice out loudThe facts and information that you have learned about a subject or about the world.
I gained basic knowledge of car repair.
The course gives students useful knowledge about taxes.
basic knowledge · general knowledge
have + (some/a lot of) knowledge of + noun
gain + knowledge of/about + noun
A clear understanding or familiarity with a subject, person, place, or situation.
She has a good knowledge of the local area.
He has little knowledge of how the system works.
working knowledge · local knowledge
have + (a good/little) knowledge of + noun
as far as I know
To my knowledge, no one has called.
information that most people in a group know
It is common knowledge that the Earth goes around the Sun.
knowledge gained from direct experience
She has first-hand knowledge of the problem.
Knowledge is usually not plural. Say a lot of knowledge, not a lot of knowledges.