Definition of labels:
(n) :
A small ticket or sign giving information about something to which it is attached or intended to be attached.
(n) :
A name given to something or someone to categorise them as part of a particular social group.
(n) :
(music) A company that sells records.
(n) :
(graphical user interface) A non-interactive control or widget displaying text, often used to describe the purpose of another control.
(v) :
(transitive) To put a label (a ticket or sign) on (something).
(v) :
(ditransitive) To give a label to (someone or something) in order to categorise that person or thing.