1.Definition: 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"

Related Noun(s):essential, necessary, necessity, requisite

Category: Objects

2.Definition: required activity

"The requirements of his work affected his health", "There were many demands on his time"

Related Noun(s):demand

Category: General

3.Definition: something that is required in advance

Related Noun(s):prerequisite

Category: General