aphthous
adjective
aphthous is spelled A-P-H-T-H-O-U-S. The wrong spelling people search most is apthous: about 60 Bing searches a month in the United States (September 2025 to August 2026), about 3 in 10 of all searches for the word. Aphthous is an adjective meaning “Of, or relating to aphtha”.
How many letters and syllables are in aphthous?
| Letters | 8: A-P-H-T-H-O-U-S |
|---|---|
| In writing | about once in every 35 million words; the 182,517th most frequent word form |
| Wrong spellings searched | 1; the most searched, apthous, about 60 Bing searches a month (all of them) |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; 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 aphthous?
Aphthous is spelled A-P-H-T-H-O-U-S. One wrong spelling is searched or written often enough to measure; together they are about 3 in 10 of the searches for aphthous 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 aphthous?
Aphthous appears about once in every 35 million words in written English, the 182,517th 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).
What does aphthous mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of, or relating to aphtha.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Aphthous in Spanish, French, German and Portuguese
In the sense relating to aphtha:
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 aphthous come from?
From aphtha + -ous.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).