écrou
French, noun/e.kʁu/
écrou is spelled É-C-R-O-U (5 letters) and appears about once in every 1 million words in written French, the 34,445th most frequent French word form (wordfreq, 2021 data). Écrou is a French masculine noun meaning “nut (that fits on a bolt), female screw” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Pièce d’assemblage mécanique d’acier, ou de toute autre matière solide, percée d’un taraudage, et dans lequel…”.
What does écrou mean in English?
noun
- 1
masculinenut (that fits on a bolt), female screw
noun
- 1
masculineprison register, prison admission form; incarceration
levée d'écrou
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Pièce d’assemblage mécanique d’acier, ou de toute autre matière solide, percée d’un taraudage, et dans lequel entre une vis ou une tige filetée en rotation.
noun: 1. Acte constitutif de l’incarcération.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of écrou
- écrous plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce écrou?
- /e.kʁu/
- \e.kʁu\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to écrou
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is écrou in French?
écrou appears about once in every 1 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).