1. things that are essential for life or survival
Usage: plural of necessity
2. things that are required or needed for a particular purpose
Usage: plural of necessity

Examples

• Food, water, and shelter are basic necessities of life.
• The store sells groceries and other daily necessities.
• We packed only the bare necessities for our camping trip.
• Medical care is one of the most important necessities.
• The refugees were provided with basic necessities like blankets and food.
• She couldn’t afford anything beyond the absolute necessities.
• The emergency kit contained all the necessities for survival.