proto
French, noun/pʁo.to/
proto is spelled P-R-O-T-O (5 letters) and appears 1.9 times per million words in written French, the 20,952nd most frequent French word form (wordfreq, 2021 data). Proto is a French masculine noun meaning “clipping of prototype” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Prototype”.
What does proto mean in English?
noun
- 1
informalmasculineclipping of prototype
- 2
masculineslangellipsis of protoxyde d'azote (“nitrous oxide”)
prefix
- 1
proto-
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
prefix: 1. Préfixe signifiant antérieur à, au début de. 2. Préfixe signifiant premier en rang, principal.
noun: 1. Prototype.
noun: 1. Protoxyde d’azote, utilisé à des fins récréatives.
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 proto
- protos plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce proto?
- /pʁo.to/
- \pʁɔ.to\
- \pʁo.to\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to proto
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is proto in French?
proto appears 1.9 times per million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).