Definition of: know

(nō) v. knew, known, know·ing v.t.
1. To perceive or understand clearly or with certainty; apprehend as objectively true: to know the truth.
2. To have information or intelligence of: to know the enemy's plans.
3. To be acquainted with; have experience of or familiarity with: Do you know each other?
4. To recognize; identify; also, to distinguish between: to know peas from beans.
5. To have practical skill in or knowledge of: often with how: Do you know how to ski?
6. Archaic To have sexual intercourse with.
—v.i.
7. To have knowledge: often with of: Do you know of any better reason?
8. To be or become aware or cognizant.
—noun The fact or condition of knowing; knowledge.
—in the know Colloq. Having full, or more than usual, information. [OE cnāwan]
—know′a·ble adjective & noun
—know′er noun Synonyms (verb): apprehend, ascertain, cognize, comprehend, discern, discover, discriminate, distinguish, experience, learn, perceive, realize, recognize, understand. See LEARN. Compare synonyms for KNOWLEDGE. Antonyms: Compare synonyms for IGNORANT.