1. (verb)fall apart, go to pieces lose one's emotional or mental composure "She fell apart when her only child died"
2. (verb)break, wear, wear out, bust, fall apart go to pieces
"The lawn mower finally broke"; "The gears wore out"; "The old chair finally fell apart completely"
3. (verb)crumble, fall apart break or fall apart into fragments
"The cookies crumbled"; "The Sphinx is crumbling"
4. (verb)break, separate, split up, fall apart, come apart become separated into pieces or fragments
"The figurine broke"; "The freshly baked loaf fell apart"