Requirement \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 Revised Unabridged Dictionary (1913)