sought-after; popular; coveted

The desire to purchase goods and services. / (economics) The amount of a good or service that consumers are willing to buy at a particular price. / A forceful claim for something. / A requirement.

To request forcefully. / To claim a right to something. / To ask forcefully for information. / To require of someone. / (law) To issue a summons to court.

(idiomatic) When needed or required.

Alternative spelling of on demand

Capable of being demanded.

One who demands; the plaintiff in a real action; any plaintiff.

simple past tense and past participle of demand

One who demands

Requiring much endurance, strength, or patience.