List of 426 Sets of Synonyms - How they Differ - Total of 2307 Words - 255

SYNONYMS: need, necessity, requisite.
These nouns denote a condition in which something essential is required or wanted; they also refer to that which is required or wanted.

Need is the most general: There's no need to be concerned. She is serene and contented; her emotional and spiritual needs are being met.
Necessity more strongly than need suggests urgency, inevitability, or unavoidable obligation: I think the necessity of being ready increases. The rehabilitation of the cabin became a necessity.
Requisite applies to something indispensable: It had the three requisites of water, fuel and fodder.