From Longman Dictionary of Contemporary Englishwash out phrasal verb1 DHCWASH wash something ↔ out to wash the inside of something quickly I’ll just wash out this vase for flowers.2 REMOVEif a substance washes out, you can remove it from a material by washing it a dye that won’t wash out3 be washed outSTOP something THAT IS HAPPENING if an event is washed out, it cannot continue because of rain The summer fair was washed out by the English weather. → washed-out, washout → wash→ See Verb table
Examples from the Corpus
wash out• A lot of hair dyes are designed to wash out after three or four washes.• I'll just go and wash out these glasses.• When the bottle is empty, wash it out thoroughly before refilling.be washed out• The parade was washed out by heavy thunderstorms.• If the sea did not constantly encroach, the salt within them would be washed out by rain.• Leading after three rounds, the fourth was washed out without a ball being hit.• The material from the iron mortar boxes was washed out on to a screen and the oversize returned to the stamps.• The pair had played only two points, splitting them, before their match was washed out.• The tank was washed out too, and placed on a layer of polystyrene on the stand.• When Hurricane Opal slammed the town in October 1995, the normal route to the mainland was washed out.• When the first game was washed out as well.• With dollar cost averaging, the price swings are washed out. 