English to English
1. required activity
the requirements of his work affected his health|there were many demands on his time
2. 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
3. something that is required in advance
Latin was a prerequisite for admission
4. The act of requiring; demand; requisition.