eighteenth
noun
- ordinal number
adjective
- in ordinal position 18
Wiktionary
Pronunciation: /ˌeɪˈtiːnθ/
adj
Etymology: Inherited from Middle English eightetenthe, eightetethe, from Old English eahtatēoþa, from Proto-Germanic *ahtudô tehundô. Equivalent to eighteen + -th (ordinal suffix).
- The ordinal form of the number eighteen.
noun
Etymology: Inherited from Middle English eightetenthe, eightetethe, from Old English eahtatēoþa, from Proto-Germanic *ahtudô tehundô. Equivalent to eighteen + -th (ordinal suffix).
- The person or thing in the eighteenth position.
- One of eighteen equal parts of a whole.
- A party to celebrate an eighteenth birthday.