vouch for (something)

to support the truth of something.

An accountant must vouch for the accuracy of any financial report.

I've known him for years and can vouch for his honesty.

• nail colours to the mast
• nail down
• nail in the coffin of
• nail in the coffin of something
• nail someone to the wall
• nail something down
• nail to the wall
• nail your colours to the mast
• name-calling
• name in lights
• name is mud
• name names
• name of the game
• name the day
• name to conjure with
• narrow escape
• natural-born
• nature of the beast
• navel-gazing
• near and dear to
• near and dear to you
• near at hand
• nearest and dearest
• nearly fall off chair
• nearly fall off your chair