noun

1a: one of a class of tenants holding his rights and title by military or other honourable services directly from a feudal superior (such as a king)

b: a lord of the realm: NOBLE, PEER

2a: a member of the lowest grade of the peerage in Great Britain

b: a nobleman on the continent of Europe of varying rank

c: a member of the lowest order of nobility in Japan

3: a joint of meat consisting of two sirloins or loins and legs not cut apart at the backbone baron of beef

4: a man who possesses great power or influence in some field of activity cattle baron