hit the big four-oh
phrase
informal
: to turn 40 years of age
Next year he'll hit the big four-oh.
Cite this Entry
“Hit the big four-oh.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hit%20the%20big%20four-oh. Accessed 14 Mar. 2026.
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Merriam-Webster unabridged
