washer
🇺🇸
/ˈwɑːʃər/
🇬🇧
/ˈwɒʃə(r)/
A thin piece used to provide a better seal or prevent damage between two parts.
The plumber used a washer to make sure the pipe connection was tight and wouldn't leak.
A machine that cleans clothes by washing them in water.
The washer finished its cycle, so it was time to move the clothes to the dryer.