essentials

noun
UK /ɪˈsenʃəlz/
US /ɪˈsenʃəlz/

The things you really need and cannot do without.

Water and food are essentials for life.


OTHER MEANINGS

2. The most basic and important parts of a subject.

This book teaches the essentials of cooking.

3. Things that are absolutely necessary for a trip or activity.

Pack only the essentials for the camping trip.

4. Simple but very important facts or skills.

The course covers the essentials of first aid.