Collins COBUILD Advanced Learner's English Dictionary - wash out

1. If you wash out a container, you wash the inside of it. It was my job to wash out the fish tank. = clean out PHRASAL VERB: V P n (not pron) 2. If dye or dirt washes out, it can be removed by washing. With permanent tints, the result won’t wash out. PHRASAL VERB: V P 3. If rain washes out a sports game or other event, it spoils it or prevents it from continuing. Rain washed out five of the last seven games. PHRASAL VERB: V P n (not pron) 4. see also washed-out, washout