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"Ellos" is a form of "ellos", a pronoun which is often translated as "they". "Uds." is an abbreviation which is often translated as "you". Learn more about the difference between "Uds." and "ellos" below.
Uds.()
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
1. (formal) (second person singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
a. you
Estimados señores: Como solicitaron Uds., anexo les envío el reporte final.Dear Sirs: As you requested, the final report is attached.
ellos()
A pronoun is a word that stands in for a noun (e.g., she).
b. them (after prepositions)
Si confías en ellos, dales las llaves.If you trust them, give them the keys.
c. them (in comparisons)
Mi hermano y yo somos tan altos como ellos.My brother and I are as tall as them.
