Meaning of lightweight

Definition of lightweight

(adj) weighing relatively little compared with another item or object of similar use; "a lightweight fabric"; "lightweight wood"
having no importance or influence; "a lightweight intellect"
(noun) a professional boxer who weighs between 131 and 135 pounds
an amateur boxer who weighs no more than 132 pounds
a wrestler who weighs 139-154 pounds

Other information on lightweight

WIKIPEDIA results for lightweight
Amazon results for lightweight