demand in WordNet English dictionary

1. require as useful, just, or proper
   "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulate a patient's consent"
   necessitate  ask  postulate  need  require  take  involve  call for  demand 
   
2. request urgently and forcefully
   "The victim's family is demanding compensation"; "The boss demanded that he be fired immediately"; "She demanded to see the manager"
   demand 
   
3. claim as due or just
   "The bank demanded payment of the loan"
   demand  exact 
   
4. summon to court
   demand 
   
5. ask to be informed of
   "I demand an explanation"
   demand 
   
6. lay legal claim to
   demand 
   

1. the act of demanding
   "the kidnapper's exorbitant demands for money"
   demand 
   
2. required activity
   "the requirements of his work affected his health"; "there were many demands on his time"
   requirement  demand 
   
3. an urgent or peremptory request
   "his demands for attention were unceasing"
   demand 
   
4. the ability and desire to purchase goods and services
   "the automobile reduced the demand for buggywhips"; "the demand exceeded the supply"
   demand 
   
5. a condition requiring relief
   "she satisfied his need for affection"; "God has no need of men to accomplish His work"; "there is a demand for jobs"
   need  demand