A small ticket or sign giving information about something to which it is attached or intended to be attached.

“Although the label priced this poster at three pounds, I got it for two.”

A name given to something or someone to categorise them as part of a particular social group.

“Ever since he started going to the rock club, he's been given the label "waster".”

A company that sells records.

“The label signed the band after hearing a demo tape.”

To put a label (a ticket or sign) on (something).

“The shop assistant labeled all the products in the shop.”

(ditransitive) To give a label to (someone or something) in order to categorise that person or thing.

“He's been unfairly labeled as a cheat, although he's only ever cheated once.”

To replace specific atoms by their isotope in order to track the presence or movement of this isotope through a reaction, metabolic pathway or cell.