A day set aside for doing household laundry

• When to do laundry
• When some cycles occur
• Laundry time
• Toilsome part of the week
• Occasion for throwing in and folding
• Monday, to many
• Time to do the laundry

Wiktionary Word definitions in Wiktionary
n. A day when laundry is washed.

WordNet Word definitions in WordNet
n. a day set aside for doing household laundry [syn: washing day ]

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Why do they build such small sculleries which make washday a dread.