A member of the lowest order of the British nobility. The term “Baron” is not used as a form of address in Britain, barons usually being referred to as “Lord.”
A similar member of a foreign nobility
A person who held lands or property from the sovereign or a powerful overlord
An important or powerful person in a specified business or industry
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a press baron
Web Definitions:
Baron is a title of nobility. The word baron comes from Old French baron, itself from Old High German and Latin (liber) baro meaning "(free) man, (free) warrior"; it merged with cognate Old English '''' meaning "nobleman".