brain‧wash /ˈbreɪnwɒʃ $ -wɒːʃ, -wɑːʃ/ verb [transitive]
to make someone believe something that is not true, by using force, confusing them, or continuously repeating it over a long period of time:
Young people are being brainwashed by this religious group.
brainwash somebody into doing something
Commercials brainwash consumers into buying things they don’t need.
—brainwashing noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲

brainwash
to make someone believe something that is not true by repeating it again and again
The people were brainwashed into thinking exactly what their leader wanted them to think.

[TahlilGaran] English Idioms Dictionary ▲

brainwash someone
to make someone believe something that is not true by repeating it again and again
The people were brainwashed into thinking exactly what their leader wanted them to think.

[TahlilGaran] English Idioms Dictionary ▲