take somebody's word for it

take (one's) word for it

To accept what one says without further verifying or investigating. You're right to be wary, but, in this case, I think we can take John's word for it. He has no reason to lie to us.
See also: for, take, word
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

take somebody’s ˈword for it

believe something that somebody has said: You know more about cars than I do, so if you think it needs a new gearbox, I’ll take your word for it.Can I take your word for it that the text has all been checked?
See also: for, take, word
Farlex Partner Idioms Dictionary © Farlex 2017
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