Knowledge means things you learn or know about. It can come from school or your own experience. People use it to think and make decisions.
She has good knowledge of history.
I need more knowledge about plants.
This meaning means you know about a fact or situation. It is being aware of something. People get this by learning or being told.
She has knowledge of the problem now.
They gained knowledge about the rules.
This meaning is about knowing a lot in one area, like a job or subject. It means skill and understanding in that topic.
He has knowledge of computer programming.
Doctors have knowledge about health.
This meaning means you know something because you have tried it or seen it. It is being familiar by personal experience.
She has knowledge of city life.
He has knowledge of speaking English well.
This meaning means you understand ideas or facts in a subject. It is about theory, not just practice or doing.
He has knowledge of mathematical principles.
Knowledge of grammar is important.
In legal language, knowledge means a person knows something officially or legally. It is about being aware of facts that affect responsibility.
The company had knowledge of the issue.
He acted without knowledge of the law.
This means knowing about people, places, or things well by close or personal experience. It shows familiarity or good understanding.
He has knowledge of many famous books.
She has knowledge of local customs.