Coterie

noun

1. A circle of people who associate with one another.

   "The new junior employee joined our merry after-hours coterie."

2. An exclusive group of people, who associate closely for a common purpose.

   "A tightly knit coterie of executive powerbrokers made all the real decisions in the company."

3. A communal burrow of prairie dogs.

   "The coterie was located in the middle of our wheat field."