is a specific kind of: break, come apart, fall apart, separate, split up.

is a broader term that covers: atomise, atomize | bray, comminute, crunch, grind, mash | pound | sunder | sliver, splinter | rag | crumb | brecciate | crush | grate, grind.

derivation: atomisation, atomization, fragmentation | fragment, shard, sherd | fragment | fragmentation | fragment | fragmentation | fragmentation.