requirement

Noun

• something that is required in advance
  • Latin was a prerequisite for admission
    

• anything indispensable
  • food and shelter are necessities of life
    
  • the essentials of the good life
    
  • allow farmers to buy their requirements under favorable conditions
    
  • a place where the requisites of water fuel and fodder can be obtained
    

• required activity
  • the requirements of his work affected his health
    
  • there were many demands on his time
    

Related words

• Synonyms: 
  prerequisite , necessity , essential , requisite , necessary , demand
• Antonyms: 
  inessential , nonessential