If an event or plan is a washout, it fails completely. The mission was a washout
the erosive process of washing away soil or gravel by water (as from a roadway); "from the house they watched the washout of their newly seeded lawn by the water"
A split with the corner pin (7 or 10) standing; symbolised as "W"; not making the spare is considered a blow or error, not a split The 1-2-4-10 or 1-2-10 split for right-handed bowlers, the 1-3-6-7 or 1-3-7 for left-handers
(1) Erosion of a relatively soft surface, such as a roadbed, by a sudden gush of water, as from a downpour or floods (2) A channel produced by such erosion
The removal of radioactive particles from a nuclear cloud by precipitation when this cloud is below a rain (or snow) cloud See Rainout, Snowout
An intentional twist in the wing, causing the wing tips to have a lower angle of attack than the wing root In other words, the trailing edge is higher than the leading edge at the wing tips Washout helps prevent tip stalls
the channel or break produced by erosion of relatively soft soil by water; "it was several days after the storm before they could repair the washout and open the road