Synonyms|394Antonyms|4|Broader|31Narrower|8Related|173
1
cannonball
1
chair car
1
chloral hydrate
1
coach
1
coal car
1
codeine
1
codeine cough syrup(expression, idiom)
1
connection
1
covered waggon
1
dark horse(noun, expression, idiom, possibility)
1
day coach
1
depressant
1
depressor
1
detective(noun, plant, agent, operative, informer)
1
diner
1
dinghy
1
dogfish
1
dolly
1
dome car(expression, idiom, vehicle)
1
dormant
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APASmart Define. (2015). sleeper thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sleeper/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleeper thesaurus" https://smartdefine.org/sleeper/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, sleeper thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sleeper/thesaurus/synonyms>.
MLASmart Define. "sleeper thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/sleeper/thesaurus/synonyms>