Third-person singular simple present indicative form of collapse.(verb)
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Use "collapses" in a sentence
"Without this belief, the word collapses, meaningless."
"(Imagine the patient stumbles into the ER and collapses from a heart attack: should we amend the statute so that you spend, maybe, 20 minutes trying to verify ability to pay before trying to resuscitate the guy? absolutely not!)"
"I'd hate to have to rewrite the Friedman and Schwartz book where the role Friedman and Schwartz assigned to monetary collapses is assigned instead to productivity shocks."