IPA: /rɪˈkwaɪərmənt/
KK: /rɪˈkwaɪərmənt/
A thing that is needed or must be done, often as part of a rule or condition.
Meeting the safety standards is a requirement for all construction projects.
Requirement → It is formed from "re-" (meaning again) and "quaerere" (meaning to seek or ask). The word refers to something that must be sought or asked for again, indicating a necessity or condition that must be fulfilled.
Think of needing to 'seek again' ('re-') something essential ('quaerere') — that's why a requirement is something necessary.