upper bound

English Thesaurus

1. (mathematics) a number equal to or greater than any other number in a given set (noun.shape)

hypernym	:	bound, boundary, edge,
definition	:	a line determining the limits of an area (noun.shape)

domain category	:	math, mathematics, maths,
definition	:	a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement (noun.cognition)