What is the meaning of Senhor?

A Portuguese gentleman.

Obsolete spelling of señor.

lord, lady

Lord, Lady

lord (a nobleman in medieval society)

mister (title conferred to an adult male)

sir (address to any male)

sir (address to a military superior)

an old man

an unspecified male

feudal lord

master (owner of a slave)

Sir (title given to a knight)

Source: wiktionary.org