The beliefs and attitudes of English musician John Lennon (1940–1980), a member of the Beatles; especially peace activism.

A surname from Irish, notably of John Lennon (1940–1980), one of the Beatles. / A male given name transferred from the surname, of modern usage.

(plural only) A pair of spectacles (glasses) with round lenses.

(plural only) A pair of eyeglasses (spectacles) with round lenses.