noun
(obsolete) The master of the servants of a household; (historical) the master of a feudal manor
One possessing similar mastery over others; (historical) any feudal superior generally; any nobleman or aristocrat; any chief, prince, or sovereign ruler; in Scotland, a male member of the lowest rank of nobility (the equivalent rank in England is baron)
One possessing similar mastery in figurative senses (esp. as lord of ~)
(astrology) The heavenly body considered to possess a dominant influence over an event, time, etc.
(British, slang, obsolete) A hunchback.
(British, Australia, via Cockney rhyming slang, obsolete) Sixpence.
verb
(ambitransitive) To domineer or act like a lord.
(transitive) To invest with the dignity, power, and privileges of a lord; to grant the title of lord.