129 entries under collapse topic. ×

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defer(break, faint)
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demise(break, faint)
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depart(break, faint)
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depress(verb, decline, release, abandon, lower)
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doze off(expression, break, faint)
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dump(verb, decline, release, abandon, lower)
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eat crow(expression, break, faint)
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expire(break, faint)
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fade
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fall over(verb, expression, fall, faint)
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fall victim to(expression, idiom, break, faint)
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falter(upset, fall, plunge, tumble)
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fell(verb, decline, release, abandon, lower)
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flicker
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give in to(expression, idiom, break, faint)
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give up the ghost(expression, idiom, break, faint)
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go downhill(expression, bend, plunge, hunch)
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go out like light(expression, idiom, succumb)
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go to ruin(expression, idiom, bend, plunge)
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go under(expression, break, faint)
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APASmart Define. (2015). keel over thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/keel_over/thesaurus/synonyms
ChicagoSmart Define. 2015. "keel over thesaurus" https://smartdefine.org/keel_over/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, keel over thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/keel_over/thesaurus/synonyms>.
MLASmart Define. "keel over thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/keel_over/thesaurus/synonyms>