Bound and Upper bound

Bound noun - A real or imaginary point beyond which a person or thing cannot go.

Upper bound and bound are semantically related. In some cases you can replace phrase "Upper bound" with "Bound", this terms are similar.

Nearby Words: bounded, boundless, boundary, bounding, boundlessness

Upper bound noun - (mathematics) a number equal to or greater than any other number in a given set.

Bound and upper bound are semantically related. You can use "Bound" instead a noun phrase "Upper bound".