裂け目, 亀裂, 割れ目
a long, narrow opening or line of breakage made by cracking or splitting, especially in rock or earth.
分裂, 不和, 対立
a state of disunion; a schism.
裂ける, 亀裂が入る, 割れる
to split or crack (something) to form a long, narrow opening.