1) a kind of African ape, smaller than a gorilla (chimpanzee)
2) one of a series of teeth on the rim of a wheel which transfers motion by locking into the teeth of a smaller wheel (cog)
3) to make (e.g. a blood vessel) tight or smaller (constrict)
4) to make (a tyre, balloon etc) smaller by letting out air or gas (deflate)
5) a kind of sea animal smaller than a whale, with a long nose (dolphin)
6) to become gradually less or smaller (dwindle)
7) a very small particle of matter, smaller than an atom, having a negative electric charge (electron)
8) the outer and smaller of the two bones from the knee to the ankle (fibula)
9) not so much; a smaller amount of; without (an amount mentioned) (less)
10) much smaller than usual or normal; a very small painting of a person (miniature)
worse than the average in quality; of lower position or rank; (showing one feels) less able or important than others
less in rank, importance
to let or bring (something) down
under, inferior
smaller or less important (than others); a person not yet legally of age (under 18 in GB)
insignificant, small
(of a number) less than; a minus sign or quantity; reduce by taking away (a number)
diminished
(a person who is) lower in rank or position; to consider or treat (a person, one's own wishes) as less important
lesser, supplementary