Definition of "Demand" :

noun: the act of demanding

"The kidnapper's exorbitant demands for money."

noun: required activity

"There were many demands on his time."

noun: an urgent or peremptory request

"His demands for attention were unceasing."

noun: the ability and desire to purchase goods and services

"The automobile reduced the demand for buggywhips."

noun: a condition requiring relief

"There is a demand for jobs."

verb: request urgently and forcefully

"The victim's family is demanding compensation."

verb: claim as due or just

"The bank demanded payment of the loan."

verb: ask to be informed of

"I demand an explanation."

verb: summon to court

verb: lay legal claim to

verb: require as useful, just, or proper

"This position demands a lot of personal sacrifice."