marked with a stripe or stripes of a different colour

banded agate

provide or fit (an object) with something in the form of a strip or ring, for reinforcement or decoration

doors are banded with iron to make them stronger

mark (something) with a stripe or stripes of a different colour

the bird's bill is banded across the middle with black

allocate to a range or category (used especially in financial contexts)

single adults in a property banded above D will pay more

(of people or organizations) form a group to achieve a mutual objective

local people banded together to fight the company