Bible Dictionaries
Eighteenth

Webster's Dictionary

(1):

(a.) Consisting of one of eighteen equal parts or divisions of a thing.

(2):

(n.) The quotient of a unit divided by eighteen; one of eighteen equal parts or divisions.

(3):

(a.) Next in order after the seventeenth.

(4):

(n.) The eighth after the tenth.

Bibliography Information
Webster, Noah. Entry for 'Eighteenth'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/eighteenth.html. 1828.