The Collaborative International Dictionary of English v.0.48:
Necessary \Nec"es*sa*ry\, n.; pl. Necessaries.
1. A thing that is necessary or indispensable to some
purpose; something that one can not do without; a
requisite; an essential; -- used chiefly in the plural;
as, the necessaries of life.
2. A privy; a water-closet.
3. pl. (Law) Such things, in respect to infants, lunatics,
and married women, as are requisite for support suitable
Moby Thesaurus II by Grady Ward, 1.0:
24 Moby Thesaurus words for "necessaries":
bare necessities, call for, demand, demand for, desideration,
desideratum, essential, essentials, indispensable, must, must item,
necessities, necessity, need, need for, occasion, prerequirement,
prerequisite, requirement, requisite, requisition, the necessary,
the needful, want