1. (

• baron ,

) a nobleman (in various countries) of varying rank ;

2. (

• baron

) a British peer of the lowest rank ;

3. (

• baron ,
• big_businessman ,
• business_leader ,
• king ,
• magnate ,
• mogul ,
• power ,
• top_executive ,
• tycoon

) a very wealthy or powerful businessman; "an oil baron" ;