As a proper noun united
is (chiefly|british) any of many football teams formed by the amalgamation of smaller ones.
As a verb bound is
) or bound
can be to surround a territory or other geographical entity or bound
can be to leap, move by jumping.
As an adjective bound is
(with infinitive) obliged (to) or bound
can be (obsolete) ready, prepared.
As a noun bound is
(often|used in plural) a boundary, the border which one must cross in order to enter or leave a territory or bound
can be a sizeable jump, great leap.