brain truster: meaning, definition, pronunciation and examples
Low to MidFormal; Political/Administrative Jargon; Journalistic
Quick answer
What does “brain truster” mean?
A member of a group of expert advisors, especially one who provides intellectual or strategic guidance to a political leader, government, or organisation.
Audio
Pronunciation
Definition
Meaning and Definition
A member of a group of expert advisors, especially one who provides intellectual or strategic guidance to a political leader, government, or organisation.
An individual (often from academia or a specialised field) who is part of a consultative inner circle, providing knowledge and ideas to inform high-level decisions. Often associated with informal, influential advisory roles rather than formal bureaucratic positions.
Dialectal Variation
British vs American Usage
Differences
The term originated in 1930s American politics (Franklin D. Roosevelt's 'Brains Trust'). It remains far more common and recognisable in American English. In British English, the concept exists but terms like 'special advisor', 'policy wonk', 'think-tanker', or 'grey eminence' are often preferred.
Connotations
American usage retains the historical-political nuance. British usage may sound like an Americanism and can carry a slightly more informal or journalistic tone.
Frequency
Common in American political/historical commentary. Rare in everyday British English.
Grammar
How to Use “brain truster” in a Sentence
[President/Leader] + rely on + [brain truster][Brain truster] + advise + [leader] + on + [issue][Brain truster] + be part of + [brain trust]Vocabulary
Collocations
Examples
Examples of “brain truster” in a Sentence
verb
British English
- The PM effectively 'brain-truster-ed' a small group of academics, bypassing the civil service.
American English
- After the election, he was brain-trusted into the new administration's inner circle.
Usage
Meaning in Context
Business
Rare; occasionally used for a CEO's informal circle of strategic advisors from outside the company.
Academic
Used in historical/political science texts analysing governance and advisory systems.
Everyday
Very rare; mostly encountered in political news or historical documentaries.
Technical
Not a technical term; confined to political science and journalism.
Vocabulary
Synonyms of “brain truster”
Strong
Neutral
Weak
Vocabulary
Antonyms of “brain truster”
Watch out
Common Mistakes When Using “brain truster”
- Using 'brain trust' and 'brain truster' interchangeably. 'Brain trust' is the group. *'He is the brain trust' is incorrect; 'He is a brain truster' is correct.
- Using it for any expert, rather than one in a close, influential advisory role to a specific leader.
FAQ
Frequently Asked Questions
It is possible but uncommon. Terms like 'strategic advisor' or 'informal advisor' are more typical in business. 'Brain truster' carries a strong political/historical flavour.
Almost never. It is a descriptive term used by journalists, historians, and political commentators to denote influence and role, not an official position.
It comes from 'Brains Trust', the name given by journalists to the group of advisers surrounding US President Franklin D. Roosevelt during his 1932 campaign and early presidency. The term was later adapted to 'brain trust' and 'brain truster'.
As a noun, it is standardly spelled as two words: 'brain truster'. The original group is the 'brain trust' or 'brains trust'. Hyphenation (brain-trust, brain-trust-er) is also seen, especially in adjectival use.
A member of a group of expert advisors, especially one who provides intellectual or strategic guidance to a political leader, government, or organisation.
Brain truster: in British English it is pronounced /ˈbreɪn ˌtrʌs.tə/, and in American English it is pronounced /ˈbreɪn ˌtrʌs.tɚ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “kitchen cabinet (US, similar informal group)”
Learning
Memory Aids
Mnemonic
Think of a TRUSTED person you go to for BRAIN-power on big decisions. They are a BRAIN-TRUST-er.
Conceptual Metaphor
GOVERNANCE/LEADERSHIP IS WAR (strategist, advisor in the 'war room'); THE MIND IS A RESOURCE (a 'trust' of brains to be drawn upon).
Practice
Quiz
What is the primary difference between a 'brain trust' and a 'brain truster'?