washback

As nouns the difference between terms and washback

is that terms is while washback is the way that tests affect how learners acquire and use a language or washback can be a large vessel used for fermentation in a distillery.

As nouns the difference between washback and backwash

is that washback is {{cx|linguistics|lang=en}} The way that tests affect how learners acquire and use a language while backwash is the backward flow of water from oars or propeller or breaking waves.

As a verb backwash is

to operate a water filter in the reverse direction in order to clean it.

As nouns the difference between washback and cashback

is that washback is the way that tests affect how learners acquire and use a language or washback can be a large vessel used for fermentation in a distillery while cashback is .