86 entries under idiom topic. ×

5
Lucy in the sky with diamonds(noun, expression, drug, dot)
5
loony toons(noun, expression)
4
back breaker(noun, expression)
4
window pane(noun, expression)
3
aqua fortis(expression, calefaction)
3
aqua regia(expression, calefaction)
2
carbon tetrachloride(expression, insulation, fire extinction)
2
carbonic acid(expression, bane)
2
fire extinguisher(expression, insulation, fire extinction)
2
hallucinogenic drug
2
hydrocyanic acid(expression, bane)
2
lunar caustic(expression, calefaction)
2
purple haze(noun, expression, drug, dot)
2
wet blanket(expression, insulation, fire extinction)
1
bitterness of spirit
1
calling a spade a spade(expression, sharp, critical, penetrating)
1
electric Kool Aid(noun, expression, dot, candy)
1
gnashing of teeth
1
in a nutshell(expression, sharp, critical, penetrating)
1
laid on the line(expression, sharp, critical, penetrating)
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APASmart Define. (2015). acid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/acid/thesaurus/synonyms
ChicagoSmart Define. 2015. "acid thesaurus" https://smartdefine.org/acid/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, acid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/acid/thesaurus/synonyms>.
MLASmart Define. "acid thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/acid/thesaurus/synonyms>