Definition of "twenty-seven" []

• The cardinal number immediately following twenty-six and preceding twenty-eight. (noun)

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• "There have been only twenty-seven amendments to the Constitution since 1787 and only seventeen since the Bill of Rights was adopted in 1791."
• "Soon after moving to Denver in 1876, she purchased a three-story mansion with twenty-seven rooms, then outfitted it with the finest furnishings available."
• "We now know how many “some” is: twenty-seven per cent."