A requirement.
An urgent request.
The desire to purchase goods and services.
An order.
The amount of a good or service that consumers are willing to buy at a particular price.
A forceful claim for something.
More precisely peak demand or peak load, a measure of the maximum power load of a utility's customer over a short period of time; the power load integrated over a specified time interval.
To require of someone.
To claim a right to something.
To ask forcefully for information.
To request forcefully.
To issue a summons to court.
An essential action, a must: something which is imperative.
A verb in imperative mood.
The grammatical mood expressing an order (see jussive). In English, the imperative form of a verb is the same as that of the bare infinitive.
Having semantics that incorporates mutable variables.
Expressing a command; authoritatively or absolutely directive.
Essential; crucial; extremely important.
Of, or relating to the imperative mood.