別れる
わかれる (wakareru)
to part, to separate, to break up
verb (ichidan)
Example
彼女は彼氏と別れることにした。
かのじょはかれしとわかれることにした。
Kanojo wa kareshi to wakareru koto ni shita.
She decided to break up with her boyfriend.
Can refer to temporary partings (like saying goodbye) or permanent separations (like breakups or divorce). Often used with the particle と (to) to indicate who you're parting from.