rift

Short definition from Wiktionary

Noun

1. 1
   A chasm or fissure.
2. 2
   A lack of cohesion; a state of conflict, incompatibility, or emotional distance.
3. 3
   A break in the clouds, fog, mist etc., which allows light through.
4. 4
   A shallow place in a stream; a ford.

Verb

1. 1
   To form a rift; to split open.
2. 2
   To cleave; to rive; to split.
3. 3
   To belch.
4. 4
   past participle of rive