wash ‧ board /ˈwɒʃbɔːd $ ˈwɒːʃbɔːrd, ˈwɑːʃ-/ BrE AmE noun [countable]
a piece of metal with a slightly rough surface, used in the past for rubbing clothes on when washing them
wash ‧ board /ˈwɒʃbɔːd $ ˈwɒːʃbɔːrd, ˈwɑːʃ-/ BrE AmE noun [countable]
a piece of metal with a slightly rough surface, used in the past for rubbing clothes on when washing them
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012