noun, noun or participle which takes 'suru', intransitive verb
Refers to the act of parting or separating, especially in a marital or close relationship context. Often used in formal or written language.
二人は離別して、それぞれ新しい人生を歩み始めた。
The two separated and each began a new life.
離別の原因は性格の不一致だった。
The cause of the separation was incompatibility of personalities.