speak volumes

Idioms  

1. Be significant, indicate a great deal, as in That house of theirs speaks volumes about their income. This idiom uses volumes in the sense of “the information contained in volumes of books.” [c. 1800]

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Example Sentences

But both nations’ decisions will speak volumes about how they, as emerging powers, want to be perceived, said Alonso Gurmendi Dunkelberg, a departmental lecturer in international relations at the University of Oxford.

From New York Times

They also speak volumes about the state of our lives and loves.

From New York Times

The simple numbers speak volumes about which political party really does it better as far as practical and productive economic practices go.

From Washington Times

"This insidious plot," he said, "comes directly from the top of Palestinian leadership... the personal threats of the Palestinian representative speak volumes."

From BBC

That may force him to choose between the two pursuits — and if he picks football, it would speak volumes about his long-term commitment to Amazon.

From New York Times