1. A small group of indispensable persons or things
   - core, nucleus

Derived forms: core groups

Type of: set

• Chinese chestnut
• Chinese chive
• brown sugar
• Brown Swiss
• brown thrasher
• brown thrush
• brown trout
• Brown University
• brown-bag
• brown-black
• brown-gray
• brown-green
• brown-grey
• brown-haired
• brown-nose
• brown-purple
• brown-speckled
• brown-striped
• brown-tail moth
• Browne
• browned
• browned off
• brownfield
• Brownian motion
• Brownian movement