washout

Washout may refer to:

Washout (erosion), the erosion of a soft surface by a gush of water
Washout (aeronautics), the practice of building a wing with a twist from root to tip
Washout (comics), a mutant character in the Marvel Comics universe
"Washout", a song by The Fallout Trust
"Washout", a 1991 episode of the PBS show Shining Time Station
"Washout", a story from The Railway Series book "Thomas Goes Home"
Washed Out, the stage name of chillwave musician Ernest Greene
The well drilling process for enlarging a drill hole in an oil well
A term for a sporting event cancelled due to rain; see Rainout (sports)
An alternate name for a run-in period, a common phase in clinical research
Radiocontrast washout, where radiocontrast disappears from a tissue