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figure out(verb, expression, phrasal verb, resolve, appreciate)
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fit together(verb, expression, concentrate, fabricate, speculate)
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fitting together(verb, expression, concentrate, fabricate, speculate)
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fix attention(verb, expression, settle, establish, put)
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fixate(verb, settle, establish, apply)
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focus attention(verb, expression, settle, establish, put)
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free-associate(think, suggest)
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get on the beam(verb, expression, idiom, settle, establish)
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give attention(verb, expression, settle, establish, put)
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guesstimate(verb, concentrate, fabricate, speculate, fantasize)
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guesstimated(verb, concentrate, fabricate, speculate, fantasize)
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hallucinate(verb, concentrate, fabricate, speculate, fantasize)
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hammer(verb, settle, establish, apply)
0
have a hunch(verb, expression, idiom, concentrate, fabricate)
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have hunch(verb, expression, concentrate, fabricate, speculate)
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have in mind(verb, expression, idiom, resolve, appreciate)
0
have visions(verb, expression, concentrate, fabricate, speculate)
0
hazard a guess(verb, expression, idiom, concentrate, fabricate)
0
head trip(verb, expression, settle, establish, put)
0
hear voices(verb, expression, concentrate, fabricate, speculate)
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APASmart Define. (2011). rack brains thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rack_brains/thesaurus/synonyms
ChicagoSmart Define. 2011. "rack brains thesaurus" https://smartdefine.org/rack_brains/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2011, rack brains thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rack_brains/thesaurus/synonyms>.
MLASmart Define. "rack brains thesaurus" 21 May 2011. Web. 26 September 2026. <https://smartdefine.org/rack_brains/thesaurus/synonyms>