required activity; the requirements of his work affected his health; there were many demands on his time

[ Syn: demand ]

anything indispensable; food and shelter are necessities of life; the essentials of the good life; allow farmers to buy their requirements under favorable conditions; a place where the requisites of water fuel and fodder can be obtained

[ Syn: necessity , essential , requisite , necessary ]

something that is required in advance; Latin was a prerequisite for admission

[ Syn: prerequisite ]