Tu means friend(s) and Ud means adult(s).
"Ud." is the abbreviation for "usted", the formal word for "you". "Está" with an accent mark on the "a" means "is", and is used for temporary things, or describing things.
Translation: Use "tu" when you speak to me, not "Ud.". (Literally: Speak to me of "tu" not of "Ud.".)
In Spanish, "where are you" is " donde esta, Ud." or "donde estas, tu". (accent mark on "donde" and on "tu") From where are you or where are you from is ¿De dónde es usted? or ¿De dónde eres tú?
yo - o tu - as el, ella, ud. - a nosotros - somos uds. ellos - an
Ud. is the abbreviation of Usted that means You (singular) in a formal way.
"Ud" is short for "Usted", which is a formal version of "tú"(You).
One is formal (como esta usted) and the other is not (como estas) You could compare it to "Sup" and "How are you sir?"
"Tu eres muy trabajador." You could also say, "Ud. es muy trabajador," but that seems like a very unlikely scenario.
both means "you" but usually you use :"tu" when you talk to someone who is close do you like a friend or family, but you use "ud. (which is short for "usted")" when you talk to someone in a very formal way. Example: to a friend "como estas tu?" (how are you?) to a non close person "como esta usted?" (how are you?)
Translation: Tiene Ud. alguien angloparlante con Ud.?
What did you do yesterday. Ud (abv. for usted) is formal for you. Informal version is: Que hiciste tu (informal for you) ayer? Que = What hiciste = did hizo = do ayer = yesterday tu = informal you usted = formal you
Es Ud. ciego = Are you blind?