overexpression
"overexpression" is a 14-letter English headword indexed on PlainSpell.
The verdict
“overexpression” is uncommon English (frequency #58,912 among 15,494 “O” headwords), classed as a noun. The kind of spelling people second-guess.
- #58,912
- frequency rank, English
- 15,494
- “O” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The abnormal or artificial expression of a gene in increased quantity
| Property | Value |
|---|---|
| Headword | overexpression |
| Language | English |
| Part of speech | Noun |
| Letters | 14 |
| Frequency rank | #58,912 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “overexpression” sits in English frequency
Rare enough to double-check
overexpression is uncommon English at frequency #58,912 among 15,494 “O” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The abnormal or artificial expression of a gene in increased quantity".
No generated misspelling entries exist for overexpression in our index, typically a sign the spelling maps closely to how the word sounds. We don't track a confusable pairing for this entry, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From over- + expression. The correct English form is overexpression, spelled O-V-E-R-E-X-P-R-E-S-S-I-O-N.
Definition
- 1The abnormal or artificial expression of a gene in increased quantity
Etymology
From over- + expression.
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 “overexpression”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is O-V-E-R-E-X-P-R-E-S-S-I-O-N - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.