O'Reilly
/əˈɹaɪ.li/
The verdict
“O'Reilly” is a moderately-common Spanish word, ranked #44,340 in Spanish word frequency and used as a proper noun.
- #44,340
- frequency rank, Spanish
- 8
- letters
- 9
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Apellido del irlandés (a su vez originándose como patronímico) de Reilly.
| Property | Value |
|---|---|
| Headword | O'Reilly |
| Language | Spanish |
| Part of speech | Proper noun |
| IPA | /əˈɹaɪ.li/ |
| Letters | 8 |
| Frequency rank | #44,340 |
| Misspellings tracked | 9 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “O'Reilly” sits in Spanish frequency
Spelling & Dictionary Insight
The Spanish entry for O'Reilly is 8 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /əˈɹaɪ.li/. Corpus data places it at rank #44,340 in overall Spanish word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Apellido del irlandés (a su vez originándose como patronímico) de Reilly.".
Our generated misspelling index lists 9 likely wrong-spelling variants for O'Reilly, with forms such as "'oreilly", "o'erilly", and "o'reillyy". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Spanish form is O'Reilly, spelled O-'-R-E-I-L-L-Y.
Definition
- 1Apellido del irlandés (a su vez originándose como patronímico) de Reilly.
Common misspellings
Also misspelled as: 'oreilly,o'erilly,o'reillyy,o'reily,o'reilyl,o'relily,o'rielly,o'rreilly,or'eilly
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of O'Reilly - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "O'Reilly"?
What does "O'Reilly" mean?
What are common misspellings of "O'Reilly"?
How do you pronounce "O'Reilly"?
What language does "O'Reilly" come from?
Is PlainSpell free to use?
Using “O'Reilly”
The practical upshot for anyone who landed here from a spell-check.
- The one correct Spanish spelling is O-'-R-E-I-L-L-Y - every other letter order is a misspelling in standard orthography.
- Say it as /əˈɹaɪ.li/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more Spanish words and confusable pairs in the same reference. Spanish words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.