r0
Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.
Letters
2 characters
Language
English
word origin
Source
Wiktionary
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Detailed reference entry for the English word "r0", 2-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "r0" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "r0" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
R0 is aEnglishnoun. It means: R₀ (“basic reproductive rate”) Pronounced /ɑɹˈnɔt/.
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See how R0 compares against similar English words.
Browse all word comparisons →| Property | Value |
|---|---|
| Headword | R0 |
| Language | English |
| Part of speech | Noun |
| IPA | /ɑɹˈnɔt/ |
| Letters | 2 |
| Frequency rank | #78,978 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Frequency rank visualization
Spelling & Dictionary Insight
The English entry for R0 is 2 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ɑɹˈnɔt/. Corpus data places it at rank #78,978 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "R₀ (“basic reproductive rate”)".
No frequent misspelling variants are recorded for R0 in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is R0, spelled R-0, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1R₀ (“basic reproductive rate”)
Frequency rank: #78,978 in English
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Nearby English words
Other entries that begin with the letter R in our English index: