(+ to) to be somebody's property
That coat belongs to Jim
to be in a proper situation, e.g. according to ability or social qualification, or a proper position or place
I never felt as if I belonged there
These knives belong in the kitchen
(+ to) to be attached or bound by birth, allegiance, dependency, or membership
I belong to Glasgow
(+ to) to be an attribute, part, or function of a person or thing
nuts and bolts belonging to the engine
to be properly classified
Whales belong among the mammals
[Middle English belongen, from be- + longen to be suitable, from along (on) because (of)]