What is the meaning of Mozo?

A male servant, especially an attendant to a bullfighter.

A title of respect for a young man (usually unmarried) with or without a name used. (The addition of quotations indicative of this usage is being sought:)

An unmarried man, a boy. (The addition of quotations indicative of this usage is being sought:)

neuter of mozu

boy; teenager; young man; single man

boyfriend

junior (person that is younger than other person)

young; younger

moose

boy, lad, young man, youth

servant, helper, steward, manservant

waiter, server

cat, tomcat

young, youthful

unmarried

Source: wiktionary.org