(as) plain as day

phrase

: very obvious

The answer is (as) plain as day.

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“(as) plain as day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/%28as%29%20plain%20as%20day. Accessed 12 Mar. 2026.

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(as) plain as day

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