O'Connor
"o-connor" is a 7-letter English headword indexed on PlainSpell.
The verdict
“O'Connor” is a moderately-common English word, ranked #13,027 in English word frequency and used as a proper noun.
- #13,027
- frequency rank, English
- 8
- letters
- 9
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A patrilineal surname from Irish.
| Property | Value |
|---|---|
| Headword | O'Connor |
| Language | English |
| Part of speech | Proper noun |
| Letters | 8 |
| Frequency rank | #13,027 |
| Misspellings tracked | 9 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “O'Connor” sits in English frequency
Spelling & Dictionary Insight
The English entry for O'Connor is 8 letters long, classified as a proper noun. Corpus data places it at rank #13,027 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 9 likely wrong-spelling variants for O'Connor, with forms such as "'oconnor", "o'cconnor", and "o'cnonor". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: Anglicisation of Irish Ó Conchúir, meaning "descendant of Conor". The correct English form is O'Connor, spelled O-'-C-O-N-N-O-R.
Definition
- 1A patrilineal surname from Irish.
- 2A place name:
- 3A place name:
- 4A place name:
- 5A place name:
Etymology
Anglicisation of Irish Ó Conchúir, meaning "descendant of Conor".
Common misspellings
Also misspelled as: 'oconnor,o'cconnor,o'cnonor,o'connorr,o'connro,o'cononr,o'conor,o'ocnnor,oc'onnor
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of O'Connor - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
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 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “O'Connor”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is O-'-C-O-N-N-O-R - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English 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.