1. Facts, information, and skills acquired through experience or education; the theoretical or practical understanding of a subject.
2. The sum of what is known.
3. Information held on a computer system.
4. True, justified belief; certain understanding, as opposed to opinion.
5. Awareness or familiarity gained by experience of a fact or situation.
Plural Noun: Knowledges
1. Knowledge is the greatest tool to defeat somebody.
2. Knowledge is power.