mister, sir (a title or form of address for a man, used with or without the name in direct or third-person address) / gentleman

Alternative letter-case form of monsieur Used to show respect / Specifically, the brother of the French king

Alternative letter-case form of Monsieur Propre

(food) croque-monsieur

Joe Bloggs (UK), John Doe (US)

Mr. Clean / a wide-shouldered, muscular man

(transitive with à) to sir someone, to call someone ‘sir’ obsequiously and excessively

(informal) know-it-all

plural of croque-monsieur