Meaning of necessity in English
1. something that you must have in order to live, work, or do something; necessary things
Food, clothing and shelter are all basic necessities of life.
Daily necessities such as toilet papers were getting scarce during the Covid-19 pandemic.
Clean water is a basic necessity of life.
Good books are an absolute necessary for a trip.
2. the condition or fact of being necessary; need or requirement
There is no necessity to speak fluent English.
Necessity is the mother of invention. (proverb)
Necessity compelled him to steal.
3. the condition or fact of being very poor or in urgent need, especially without enough necessary things; poverty
They are in necessity.