Definitions:
a small piece of paper, fabric, plastic, or similar material attached to an object and giving information about it

a classifying phrase or name applied to a person or thing, especially one that is inaccurate or restrictive

a narrow horizontal strip, typically with three downward projections, that is superimposed on a coat of arms by an eldest son during the life of his father.

attach a label to (something)

assign to a category, especially inaccurately or restrictively