Definition of collapse
(Entry 1 of 2)
1 : to fall or shrink together abruptly and completely : fall into a jumbled or flattened mass through the force of external pressure a blood vessel that collapsed
2 : to break down completely : disintegrate … his case had collapsed in a mass of legal wreckage …— Erle Stanley Gardner
3 : to cave or fall in or give way The bridge collapsed.
4 : to suddenly lose force, significance, effectiveness, or worth fears that the currency may collapse
5 : to break down in vital energy, stamina, or self-control through exhaustion or disease She came home from work and collapsed on the sofa. especially : to fall helpless or unconscious He collapsed on stage during the performance.
6 : to fold down into a more compact shape a chair that collapses a collapsing golf club that can fit into a travel bag
Definition of collapse (Entry 2 of 2)
1a : a breakdown in vital energy, strength, or stamina suffered a mental collapse
c : an airless state of all or part of a lung originating spontaneously or induced surgically
2 : the act or action of collapsing the cutting of many tent ropes, the collapse of the canvas— Rudyard Kipling
4 : a sudden loss of force, value, or effect the collapse of respect for ancient law and custom— L. S. B. Leakey
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