77 entries under idiom topic. ×

7
mental capacity(noun, expression, intelligence, intellect)
3
learning ability(noun, expression)
2
central nervous system
2
common sense(noun, expression, mind, intelligence)
2
knock block off(verb, expression, phrasal verb, charge)
2
knock for a loop(verb, expression, charge, beat)
2
lay siege to(verb, expression, phrasal verb, charge)
2
organ of thought(expression, intellect)
2
seat of thought(expression, intellect)
2
take the offensive(verb, expression, charge, beat)
1
deal a deathblow(expression, killing)
1
autonomic nervous system
1
blow to pieces
1
craniosacral nervous system
1
cut to pieces
1
discourse of reason
1
give a black eye(verb, expression, beat, hit)
1
give the quietus
1
let have it(verb, expression, phrasal verb, beat)
1
liver and lights
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APASmart Define. (2016). brain thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/brain/thesaurus/synonyms
ChicagoSmart Define. 2016. "brain thesaurus" https://smartdefine.org/brain/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, brain thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/brain/thesaurus/synonyms>.
MLASmart Define. "brain thesaurus" 19 February 2016. Web. 23 September 2026. <https://smartdefine.org/brain/thesaurus/synonyms>