collapse

verb1 of 2

to suddenly fall down or break apart

• “It's as though the entire universe has collapsed on me.”Tatoeba
• “It was such a shock to her that she collapsed.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

Constant function, one-valued function (in automata theory) (in particular application causing a reset).