essentialgroup
nounUK /ɪˈsɛnʃəl ɡruːp/
US /ɪˈsɛnʃəl ɡruːp/
A group of people or things that are really needed and very important.
The essentialgroup of helpers made sure everyone had food and water.
OTHER MEANINGS
2. A small set of things that you must have for something to work.
The essentialgroup of tools fit in one small box.
3. The most important members of a larger group.
The essentialgroup of players stayed on the field until the end.
4. A basic collection of items needed for a task.
She packed an essentialgroup of clothes for the trip.