REQUIREMENT

prerequisite, requirement

(noun) something that is required in advance; “Latin was a prerequisite for admission”

requirement, demand

(noun) required activity; “the requirements of his work affected his health”; “there were many demands on his time”

necessity, essential, requirement, requisite, necessary

(noun) 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”

Source: WordNet® 3.1

Etymology

Noun

requirement (plural requirements)

A necessity or prerequisite; something required or obligatory. Its adpositions are generally of in relation to who or what has given it, on in relation to whom or what it is given to, and for in relation to what is required.

Something asked.

(engineering, computing) A statement (in domain specific terms) which specifies a verifiable constraint on an implementation that it shall undeniably meet or (a) be deemed unacceptable, or (b) result in implementation failure, or (c) result in system failure.

Usage notes

• Adjectives often used with "requirement": stringent, complex, reasonable, mandatory, important, financial, medical, educational, physical, chemical

• Verbs often used with "requirement": meet, comply with, satisfy, fulfill, impose, waive, abolish, drop, add, remove, fail to meet, ignore, understand, state, specify, increase, reduce, change, modify

Synonyms

• (prerequisite): condition, prerequisite, necessity

Hyponyms

• functional requirement

• quality requirement

Source: Wiktionary

Re*quire"ment (-ment), n.

1. The act of requiring; demand; requisition.

2. That which is required; an imperative or authoritative command; an essential condition; something needed or necessary; a need. One of those who believe that they can fill up every requirement contained in the rule of righteousness. J. M. Mason. God gave her the child, and gave her too an instinctive knowledge of its nature and requirements. Hawthorne.

Source: Webster’s Unabridged Dictionary 1913 Edition