IPA: /ˈdʒɛntəlmən/
KK: /ˈdʒɛntəlmən/
A well-mannered and considerate man who behaves in a polite and respectful way.
He is a true gentleman, always opening doors for others.
Gentleman → It is formed from "gentle" (from Old French *gentil*, meaning noble or well-born) and "man" (from Old English *mann*, meaning person or human). The word "gentleman" originally referred to a man of noble birth or a man of good social standing.
Think of a 'noble' ('gentle') person ('man') — that's why a gentleman is often seen as a man of good character and social standing.