semicircle
noun, verb
semicircle is spelled S-E-M-I-C-I-R-C-L-E: 10 letters. It appears about once in every 5 million words in written English, the 69,055th most frequent word form (wordfreq, 2021 data). As a noun, semicircle means “A half of a circle” (English Wiktionary, September 2026). The plural of semicircle is semicircles.
How many letters and syllables are in semicircle?
| Letters | 10: S-E-M-I-C-I-R-C-L-E |
|---|---|
| In writing | about once in every 5 million words; the 69,055th most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is semicircle?
Semicircle appears about once in every 5 million words in written English, the 69,055th 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 semicircle?
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-semicircle.wav, Wikimedia Commons (author and licence on each file's page).
Words people confuse with semicircle
Also written: semi-circle (one word or two).
Sources: English Wiktionary (homophones, alternative spellings).
Forms of semicircle
- semicircles plural, present, singular, he/she/it
- semicircling participle, present
- semicircled participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does semicircle mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A half of a circle.
- 2
A surveyor's instrument for measuring angles; a graphometer.
- 3
An arc whose center is the penalty spot, extending from the top of the penalty area.
verb
- 1
To travel or move around in a semicircle.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Semicircle in Spanish, French, German and Portuguese
In the sense half of a circle:
| Language | Words |
|---|---|
| French | demi-cercle |
| German | Halbkreis |
| Portuguese | semicírculo |
| Spanish | semicírculo |
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 semicircle come from?
From semi- + circle.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).