—n. 1. something that is advantageous or good; an advantage: He explained the benefits of public ownership of the postal system. 2. a payment or gift, as one made to help someone or given by a benefit society, insurance company, or public agency: The company offers its employees a pension plan, free health insurance, and other benefits. 3. a theatrical performance or other public entertainment to raise money for a charitable organization or cause.
4. Archaic.an act of kindness; good deed; benefaction.
5. for someone's benefit, so as to produce a desired effect in another's mind: He wasn't really angry; that was just an act for his girlfriend's benefit.
—v.t. to do good to; be of service to: a health program to benefit everyone.
—v.i. to derive benefit or advantage; profit; make improvement: He has never benefited from all that experience.