heaven knows

phrase

informal
—used to stress that something is not known
"How long will the meeting last?" "Heaven (only) knows."

Examples of heaven knows in a Sentence

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Afterward, hang out on Olvera Street and grab something to eat — heaven knows those businesses need the help. — Gustavo Arellano, Los Angeles Times, 10 July 2026

Rhymes for heaven knows

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heaven-dust
heaven knows
heavenless
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Cite this Entry

“Heaven knows.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heaven%20knows. Accessed 16 Jul. 2026.

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