Third-person singular simple present indicative form of know / (nonstandard) All persons, singular and plural, present form of know.

(transitive) To perceive the truth or factuality of; to be certain of or that. / (transitive) To be aware of; to be cognizant of. / (transitive) To be acquainted or familiar with; to have encountered.

(rare) Knowledge; the state of knowing. / Knowledge; the state of knowing; now confined to the fixed phrase ‘in the know’

plural of knowing

To be aware of (someone's or something's) existence, but little or nothing beyond that. / To know about a specific person by reputation without having met them.

(especially in the past) To not have the required information.

Third-person singular simple present indicative form of know of

present participle of know of

(informal, humorous) Used to signify a reference or allusion to something that is only understood by certain groups of people.

Knowing everything; omniscient.