coroutine
noun
coroutine is a noun meaning “A piece of code that performs a task, and that can be passed new input and return output more than once” (English Wiktionary, September 2026). It is spelled C-O-R-O-U-T-I-N-E, and it appears about once in every 50 million words in written English (wordfreq, 2021 data). The plural of coroutine is coroutines.
What does coroutine mean?
noun
- 1
A piece of code that performs a task, and that can be passed new input and return output more than once.
Although a powerful tool, coroutines can be hard to understand due to the way data can flow back and forth between sections of the code.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce coroutine?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Neøn-coroutine.wav, Wikimedia Commons (author and licence on each file's page).
Forms of coroutine
- coroutines plural
- co-routine
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is coroutine?
Coroutine appears about once in every 50 million words in written English, the 220,118th 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).
Coroutine in Spanish, French, German and Portuguese
In the sense Translations:
| Language | Words |
|---|---|
| German | Koroutine |
| Spanish | corrutina |
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 coroutine come from?
From co- + routine, coined by American computer scientist Melvin Conway in 1958.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).