smile from ear to ear
phrase
: to smile widely : to have a big smile on one's face
She could not contain her happiness when meeting her childhood idol, and smiled from ear to ear the entire time.
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“Smile from ear to ear.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smile%20from%20ear%20to%20ear. Accessed 6 Mar. 2026.
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