verb, knew, known, know⋅ing, noun | 1. | to perceive or understand as fact or truth; to apprehend clearly and with certainty: I know the situation fully. |
| 2. | to have established or fixed in the mind or memory: to know a poem by heart; Do you know the way to the park from here? |
| 3. | to be cognizant or aware of: I know it. |
| 4. | be acquainted with (a thing, place, person, etc.), as by sight, experience, or report: to know the mayor. |
| 5. | to understand from experience or attainment (usually fol. by how before an infinitive): to know how to make gingerbread. |
| 6. | to be able to distinguish, as one from another: to know right from wrong. |
| 7. | Archaic. to have sexual intercourse with. |
| 8. | to have knowledge or clear and certain perception, as of fact or truth. |
| 9. | to be cognizant or aware, as of some fact, circumstance, or occurrence; have information, as about something. |
| 10. | the fact or state of knowing; knowledge. |
| 11. | in the know, possessing inside, secret, or special information. |
| 12. | know the ropes, Informal. to understand or be familiar with the particulars of a subject or business: He knew the ropes better than anyone else in politics. |
skein. See gnostic, can 1 
known (nōn) v. Past participle of know. adj. Proved or generally recognized: the only known case; a known authority. n. Something that is known: In this instance, the only known is our actual profit margin. |