eighteen
/ˈeɪ(t).tin/number
eighteen is spelled E-I-G-H-T-E-E-N. The wrong spelling people search most is eightteen: about 190 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 10 of all searches for the word. Eighteen is a number meaning “The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and…”.
How many letters and syllables are in eighteen?
| Letters | 8: E-I-G-H-T-E-E-N |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 6.5 times per million words; the 9,463rd most frequent word form |
| Wrong spellings searched | 1; the most searched, eightteen, about 190 Bing searches a month (all of them) |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How do you spell eighteen?
Eighteen is spelled E-I-G-H-T-E-E-N. One wrong spelling is searched or written often enough to measure; together they are about 1 in 10 of the searches for eighteen in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is eighteen?
Eighteen appears 6.5 times per million words in written English, the 9,463rd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce eighteen?
- US /ˈeɪ(t).tin/
- UK /ˈeɪ.tiːn/
- US /ˌeɪ(t)ˈtin/
Eighteen has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-eighteen.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of eighteen
- 18
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does eighteen mean?
The meanings the English Wiktionary records, quoted as written there (source below).
number
- 1
The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Eighteen in Spanish, French, German and Portuguese
In the sense cardinal number:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does eighteen come from?
From Middle English eightetene, eiȝtene, ehtetene, from Old English eahtatīene, eahtatēne, from Proto-Germanic *ahtōutehun. Cognate with West Frisian achttjin, Dutch achttien, German achtzehn, Danish atten. Equivalent to eight + -teen.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).