Looking on the internet deeply has found these results:

laundress is the most popular phrase on the web.

washerwoman 1800,000 results on the web	laundress 17,590,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
She could do better than being a washerwoman The washerwomen say she's a witch. Am I fighting some sort of washerwoman? The nightdress never reaches the washerwoman. It was Maura that wore it like a washerwoman. Why is it that the bad washerwoman never finds a pretty pear? Hardly the hands of a washerwoman. Well, taking into consideration the degree of bloating and the wrinkles from her "washerwoman effects" on her hands, I'd say the body's probably been in the water about six hours.	She worked for others as a laundress. Landlord maybe, or the laundress. You can't be jealous of a laundress who hangs around the North Pole, An undertaker, a laundress, and a charlady. He certainly looks guilty, your Honor... with the poor old laundress lying dead. I the laundress for a loaf of bread... This area... used as a place for drying linen... will be left as asked for, on an arrangement... made between the draughtsman and the laundress... who will take full responsibility... for the disposition of the linen. My mother was a laundress and she used a pinch of indigo to brighten all her whites.

washerwoman

1800,000 results on the web

laundress

17,590,000 results on the web

More popular!

She could do better than being a washerwoman
The washerwomen say she's a witch.
Am I fighting some sort of washerwoman?
The nightdress never reaches the washerwoman.
It was Maura that wore it like a washerwoman.
Why is it that the bad washerwoman never finds a pretty pear?
Hardly the hands of a washerwoman.
Well, taking into consideration the degree of bloating and the wrinkles from her "washerwoman effects" on her hands, I'd say the body's probably been in the water about six hours.

She worked for others as a laundress.
Landlord maybe, or the laundress.
You can't be jealous of a laundress who hangs around the North Pole,
An undertaker, a laundress, and a charlady.
He certainly looks guilty, your Honor... with the poor old laundress lying dead.
I the laundress for a loaf of bread...
This area... used as a place for drying linen... will be left as asked for, on an arrangement... made between the draughtsman and the laundress... who will take full responsibility... for the disposition of the linen.
My mother was a laundress and she used a pinch of indigo to brighten all her whites.