eighteen /ā-tēnˈ or āˈtēn/

1. Eight and ten
2. (18) a certificate designating a film passed as suitable only for people of eighteen years and over

eighteenˈmo adjective and noun (pl eighteenˈmos)

Octodecimo

eighˈteenth (or /-tēnthˈ/) adjective

1. Last of eighteen
2. Next after the seventeenth
3. Equal to one of eighteen equal parts

1. An eighteenth part
2. A person or thing in eighteenth position

eighteenthˈly adverb

eighˈteen-hole adjective

(of a golf course) having eighteen holes

eighˈteen-pence noun

eighˈteen-penny adjective

eighteen-penny piece noun

An obsolete English coin

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