必需品

(1)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"

(2)不可欠な何でも

(3)(usually plural) a necessary commodity for which demand is constant

(4)需要が一定である必需品