Duration is a related term of bound.
As nouns the difference between duration and bound
is that duration
is an amount of time or a particular time interval while 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.
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.