Underwater, up quark, adjective_ (chiefly British) of or appropriate to the upper classes especially in language use, pronoun_ abbreviation, slang, text messaging, Internet you (in text messaging and internet conversations), noun_ The twenty-first letter of the basic modern Latin alphabet, A grade that indicates an unsatisfactory status, The 21st letter of the modern English alphabet

In a direction analogous to up, but along the additional axis added by the fourth dimension, noun_ A collection of things associated with a person or place, especially a personal collection of anecdotes or conversations at table

Plural form of conversation