eighteenth
/eɪtˈtinθ/ adj, adv, n [C]Definition
› (in the position of) the number 18 in a series; 18th: He ranks eighteenth in the world. [C] Ann-Marie’s birthday is the eighteenth of October. › An eighteenth is one of eighteen equal parts of something.
(Definition of eighteenth adj, adv, n from the Cambridge Academic Content Dictionary
© Cambridge University Press)
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