RRO
French, noun/ɛ.ʁɛ.ʁo/
RRO is spelled R-R-O (3 letters) and appears about once in every 41 million words in written French, the 202,924th most frequent French word form (wordfreq, 2021 data). RRO is a French noun meaning “MMR” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Vaccin combiné contre la rougeole, la rubéole et les oreillons”.
What does RRO mean in English?
noun
- 1
MMR
vaccin RRO
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Vaccin combiné contre la rougeole, la rubéole et les oreillons.
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 RRO
- ROR
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce RRO?
- /ɛ.ʁɛ.ʁo/
- /e.ʁe.ʁo/
- \ɛ.ʁ‿ɛ.ʁo\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is RRO in French?
RRO appears about once in every 41 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).