hard-core

hard-core — noun

IPA/ˌhɑːd ˈkɔː(r)/
IPA/ˌhɑːrd ˈkɔːr/

1. the tightly-knit cluster of members inside a larger organisation whose commitmen

1.nounB2
Definition

the tightly-knit cluster of members inside a larger organisation whose commitment is far stronger than that of most other members, and who keep going even when others lose interest.

Example

The hard core of the party refused to accept any compromise on the new policy.

the hard core of + group noun

A hard core of volunteers kept the shelter open every night, even after funding was cut.

a hard core of + plural noun

Common collocations
  • hard core of supporters
  • hard core of members
  • hard core of activists
  • party's hard core
  • movement's hard core
  • part of the hard core
  • among the hard core
Synonyms
  • inner circle

    emphasises exclusivity and closeness rather than ideological commitment

  • cadre

    more formal, often used in political or military contexts

  • nucleus

    suggests the smallest essential group around which an organisation grows

  • old guard

    stresses longevity and resistance to change, sometimes with a conservative tone

Antonyms
  • the masses

    the general, less committed membership as opposed to the active few

  • fringe

    the outer, less committed or less influential members of a group

Grammar Patterns

the hard core of + group noun

a hard core of + plural noun

Usage Note

Often used with a possessive (the party's hard core, the movement's hard core) or with 'of' to name the larger group. The noun is singular in form but refers to a collective group of people.

Common Mistakes

The hard-core of workers went on strike' (no article when 'the' is needed).
The hard core of workers went on strike.
The phrase 'the hard core' always needs a determiner (the, a, its).
A hardcore of three members' (spelling should be two-word noun form).
A hard core of three members.
As a noun, it is written as two words without a hyphen.

2. crushed stones, bricks, or similar hard debris compacted to create a stable foun

2.nounC1
Definition

crushed stones, bricks, or similar hard debris compacted to create a stable foundation under roads, paths, or building floors.

Example

The builders laid a thick layer of hard core before pouring the concrete slab.

layer of hard core

Old bricks were broken up and used as hard core for the new garden path.

used as hard core

Common collocations
  • layer of hard core
  • spread hard core
  • compact hard core
  • hard-core base
  • hard-core fill
  • tons of hard core
Synonyms
  • hardcore

    same meaning, common single-word spelling in British construction contexts

  • rubble fill

    more specific term used in building specifications

Grammar Patterns

hard core as + noun

layer of hard core

Usage Note

Almost exclusively British English. In American English, terms like 'gravel base,' 'crushed stone,' or 'rubble fill' are used instead. This sense is always uncountable — you never say 'a hard core' to mean a quantity of broken stone.

Common Mistakes

We need a hard core for the foundation' (countable use).
We need some hard core for the foundation.
In this sense, 'hard core' is uncountable.
Hardcore is used in American construction' (wrong regional association).
Hard core is used in British construction.
This is a British English term; Americans say 'gravel base' or 'rubble fill.'

hard-core — adjective

IPA/ˌhɑːdˈkɔːr/
IPA/ˌhɑːrdˈkɔːr/

Word family

Synonym discussion

Sense: adjective/1

These four words all describe strong loyalty, but they differ in intensity and context. 'Hard-core' suggests an almost stubborn level of dedication that goes beyond what is typical — a hard-core fan might spend every free moment on their hobby. 'Die-hard' is very close in meaning but sounds slightly old-fashioned and is often applied to political loyalty or sports fandom. 'Devoted' has warmer, more emotional connotations — you can be devoted to a person, a cause, or a pet, and it does not imply extremity. 'Committed' is the most neutral and professional of the four; it is used in workplace and relationship contexts (a committed employee, a committed partner). 'Dedicated' overlaps with 'committed' but adds a sense of consistent effort over time. Example: 'A hard-core environmentalist may chain herself to a tree, while a committed environmentalist sorts her recycling every week.' The choice depends on how extreme the behaviour you want to describe actually is.

die-harddevoted ↗committed ↗dedicated ↗

Common collocations

Nouns

  • hard-core fan
  • hard-core member
  • hard-core supporter
  • hard-core follower

Adverbs

  • truly hard-core
  • pretty hard-core
  • genuinely hard-core

Phrases

  • the hard core of the group
  • hard core in its approach

Prepositions

  • hard-core about

Etymology

LatinOld FrenchMiddle EnglishEnglish

The word 'hard-core' combines 'hard' (from Old English 'heard', meaning firm, solid, or difficult) with 'core' (from Latin 'cor', meaning heart, via Old French). The literal meaning — a hard central part — was used in construction from the 1800s for the broken stone base layer of a road. By the early 1900s, the figurative sense emerged: the 'hard core' of a group meant its unyielding, stubbornly loyal centre, like the hardest part of a fruit. The adjective uses followed in the mid-20th century, first for people (hard-core supporters) and then for activities (hard-core pornography in the 1960s, hard-core punk in the 1980s). The spelling varies: the noun phrase is usually two words ('hard core'), while the adjective is hyphenated or closed ('hard-core' or 'hardcore').

First known use

1934

1934, in the meaning defined at sense 1a Noun