From Longman Dictionary of Contemporary Englishwash something ↔ away phrasal verb1 if water washes something away, it carries it away with great force Floods in Bangladesh have washed hundreds of homes away.2 to get rid of unhappy feelings, thoughts, or memories My anxiety was washed away. → wash→ See Verb table
Examples from the Corpus
wash away• After that, the town continued to sink until spring floods finally washed it away.• The white space is pouring, would wash you away.• What we both need is a good strong cup of tea to wash it away.• Has this exorcism washed you away as well?• Common sense, reason, tell her to wash this away down the wash bowl, but thrift forbids.• I found that my Winsor & Newton Art Masking Fluid took off the original wash when rubbed away, leaving white paper.• We must flush out the bad seed and eliminate it, wash it away, remove it from among us.• The green will eventually go brown or black, after which you can wash it away with a high pressure hose. 