ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
1. : a turbulent surface of water caused by strong currents setting over submerged ridges or shoals or by winds opposing a current — usually used in plural
2. obsolete : cataract , waterfall
3. : a place provided for the overflow of surplus water (as from a canal or lock)
4. : a sudden increase of depth in the bottom of the sea or other large body of water