celsius
/ˈsɛl.siəs/adjective
celsius is spelled C-E-L-S-I-U-S. The wrong spelling people search most is celcius: about 4,610 Bing searches a month in the United States (September 2025 to August 2026), about 3 in 10 of all searches for the word. Celsius is an adjective meaning “Alternative letter-case form of Celsius”.
How many letters and syllables are in celsius?
| Letters | 7: C-E-L-S-I-U-S |
|---|---|
| Syllables | 1 |
| In writing | 1.9 times per million words; the 19,825th most frequent word form |
| Wrong spellings searched | 1; the most searched, celcius, about 4,610 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 celsius?
Celsius is spelled C-E-L-S-I-U-S. One wrong spelling is searched or written often enough to measure; together they are about 3 in 10 of the searches for celsius 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 celsius?
Celsius appears 1.9 times per million words in written English, the 19,825th 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 celsius?
- US /ˈsɛl.siəs/
- /ˈsɛl.ʃəs/
Celsius has one syllable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-Celsius.wav, Wikimedia Commons (author and licence on each file's page).
What does celsius mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Alternative letter-case form of Celsius.
adjective
- 1
Relating to the metric temperature scale of said name.
noun
- 1
informalEllipsis of degree Celsius.
Water boils at 100 Celsius.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Celsius in Spanish, French, German and Portuguese
In the sense related to a metric scale of temperature:
| Language | Words |
|---|---|
| French | Celsius |
| German | Celsius |
| Portuguese | célsius, centígrado |
| Spanish | Celsius |
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 celsius come from?
Named after Swedish astronomer Anders Celsius (1701–1744), who first proposed the centigrade scale in 1742. The surname is Latinized from the estate's name, Latin celsus (“mound”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).