Bible Dictionaries
Thirty

Webster's Dictionary

(1):

(a.) Being three times ten; consisting of one more than twenty-nine; twenty and ten; as, the month of June consists of thirty days.

(2):

(n.) A symbol expressing thirty, as 30, or XXX.

(3):

(n.) The sum of three tens, or twenty and ten; thirty units or objects.

Bibliography Information
Webster, Noah. Entry for 'Thirty'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/thirty.html. 1828.