Least (lst), a. [OE. last, lest, AS. lsast, lsest, superl. of lssa
less. See Less, a.] [Used as the superlative of little.] Smallest,
either in size or degree; shortest; lowest; most unimportant; as, the
least insect; the least mercy; the least space.
Least is often used with the, as if a noun.