The key to the answer to your question is the word someone. Ud. is used when speaking with/to a single person. Uds. is used when speaking to a group of two or more people. You want to use Ud.
"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.
Ud=Ut dictum is a latin word, meaning "as directed"
Are you lost? (formal) Ud is an abbreviation for "usted" which is the formal singular word for "you"
No. The word Zen is not allowed in Scrabble.
No. Jax is not a legal Scrabble word.
No, "hed" is not a word at all, and may not be used in Scrabble.
tú = you (informal) Usted / Ud. = you (formal)
The Official Scrabble Dictionary lists lo as an acceptable Scrabble word. It is used to attract attention or to express surprise.
Yes. Ma is a Scrabble word.
No. Le is not allowed in Scrabble.
No. Zen is not a legal Scrabble word.