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adj Uncommon

eighteenth

ay-TEENTH

Eighteenth (adj) means coming after seventeen others in a sequence; number 18 in an ordered list. Example: “This is the eighteenth chapter of the book.”

adj
1
Coming after seventeen others in a sequence; number 18 in an ordered list.
"This is the eighteenth chapter of the book."
noun
1
One of eighteen equal parts of something.
"Each slice was roughly an eighteenth of the whole pie."
2
(informal) A party celebrating someone's eighteenth birthday.
"She invited half her school to her eighteenth."

How to use eighteenth

Learner’s notes

In plain EnglishThe ordinal form of eighteen — eighteenth in line, or one part out of eighteen.

Word forms

eighteenths plural

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This is the _____ chapter of the book.

Etymology

Inherited from Middle English eightetenthe, eightetethe, from Old English eahtatēoþa, from Proto-Germanic *ahtudô tehundô. Equivalent to eighteen + -th (ordinal suffix).

Origin: Middle English

18th XVIIIth

Rhymes for eighteenth

See all rhymes for eighteenth →

Frequently asked questions

What does “eighteenth” mean?

The word “eighteenth” means coming after seventeen others in a sequence; number 18 in an ordered list. In plain terms, the ordinal form of eighteen — eighteenth in line, or one part out of eighteen.

How do you pronounce “eighteenth”?

“Eighteenth” is pronounced ay-TEENTH (/ˌeɪˈtiːnθ/ in IPA).

How do you use “eighteenth” in a sentence?

Here is “eighteenth” used in a sentence: “This is the eighteenth chapter of the book.”

What is another word for “eighteenth”?

Words with a similar meaning to “eighteenth” include 18th and XVIIIth.

What part of speech is “eighteenth”?

Depending on how it is used, “eighteenth” can be an adjective and a noun.

Is “eighteenth” a common word?

“Eighteenth” is an uncommon word in modern English.

How many meanings does “eighteenth” have?

“Eighteenth” has 3 distinct senses listed in this dictionary. The most common is: coming after seventeen others in a sequence; number 18 in an ordered list.

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Definitions: FreeDict original editorial · etymology from Wiktionary