Definition

1. Noun:
   • A small group of indispensable persons or things: A "core group" refers to a central, essential, and often small collection of individuals or items that form the fundamental or most important part of a larger organization, system, or activity.

Usage

• The term "core group" is used to emphasize the critical, foundational, or indispensable nature of the members or components within a larger whole. It is a compound noun.
• It is typically followed by a prepositional phrase starting with "of" (e.g., ).

Examples

• Noun:
  • A core group of volunteers manages the community garden.
  • The company's success relies on a dedicated core group of engineers.
  • Five periodicals make up the core of their publishing program. (This illustrates the concept of a "core group" of publications.)

Advanced Usage

• "to form the core group": to establish or constitute the essential part.
  • These five members will form the core group for the new project committee.
• "a hard core group": an intensely committed and unwavering central group. (Note: "hard core" is a separate adjective phrase modifying "group").
  • A hard core group of supporters remained loyal throughout the crisis.

Variants and Related Words

• Core (noun): The central or most important part of something.
  • The core of the argument was about trust.
• Nucleus (noun): A central or essential part around which other parts are gathered; a synonym in certain contexts.
  • She formed the nucleus of the research team.

Synonyms

• Central group: The main or most important group.
• Key group: A group of crucial importance.
• Nucleus: The central and most important part of an object or group.

Antonyms

• Peripheral group: A group on the outer edges or of minor importance.
• Auxiliary group: A group that provides supplementary support, not central.

Related Phrases

• Inner circle: A small group of people who lead a larger organization or who share private information. This is similar but often implies exclusivity and privilege rather than just indispensability.
  • He is not part of the CEO's inner circle.

Noun

1. a small group of indispensable persons or things
   • five periodicals make up the core of their publishing program