Word Study
eighteenth
CIDE DICTIONARY
eighteenth, a. [From Eighteen.].
- Next in order after the seventeenth. [1913 Webster]
- Consisting of one of eighteen equal parts or divisions of a thing. [1913 Webster]
eighteenth, n.
- The quotient of a unit divided by eighteen; one of eighteen equal parts or divisions. [1913 Webster]
- The eighth after the tenth. [1913 Webster]
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