seigneur (n.)

• archduke
• aristocrat
• armiger
• baron
• baronet
• boss
• chef
• chief
• count
• duke
• earl
• elder
• employer
• esquire
• gentleman
• goodman
• grandee
• guru
• husband
• laird
• landgrave
• liege
• lord
• magnate
• magnifico
• margrave
• marquis
• master
• noble
• nobleman
• overlord
• padrone
• palsgrave
• paterfamilias
• patriarch
• patrician
• patron
• peer
• rabbi
• sahib
• seignior
• squire
• starets
• swell
• teacher
• thoroughbred
• viscount