not cost a penny
idiom
variants
or US not cost a dime/nickel
: to not cost any money : to be free
Come to my party. It won't cost (you) a penny.
Cite this Entry
“Not cost a penny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20cost%20a%20penny. Accessed 31 Oct. 2025.
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