/ˈnɒlɪdʒ/
Knowledge has 4 different meanings across 2 categories:
The fact of knowing about something; general understanding or familiarity with a subject, place, situation etc.
"Her extensive knowledge of local history allowed her to guide tourists through the old district with confidence."
In plain English: Knowledge is the information you learn and remember about how things work.
"She shared her knowledge about gardening with the new neighbors."
Usage: Use knowledge to refer to the information, facts, or skills you have acquired through experience or education. It describes what you know about a specific topic rather than your ability to learn new things.
To confess as true; to acknowledge.
"The jury found him guilty after he confessed his knowledge of the crime, admitting that he had seen everything happen."
In plain English: To know something is to have information about it stored in your brain so you can use it when needed.
"The professor will not know that you are in attendance until you sign the roster."
Usage: Although "knowledge" is primarily a noun, it can function as a verb in formal or legal contexts to mean acknowledging something as true. Use this form only when you need to explicitly state that someone admits the validity of a fact or claim.
A course of study which must be completed by prospective London taxi drivers; consists of 320 routes through central London and many significant places.
"After years of studying the Knowledge, a rigorous course covering 320 routes through central London, he finally passed his test to become a licensed cab driver."
The word "knowledge" comes from Middle English knowleche, which was formed by adding a suffix to the verb knowen meaning "to know or recognize." It is related to the Old English term for acknowledgment and shares roots with words like freelage.