Unabomber
/ˈjuːnəbɒmər/
"unabomber" is a 9-letter English headword indexed on PlainSpell.
The verdict
“Unabomber” is uncommon English (frequency #81,936 among 23,789 “U” headwords), classed as a proper noun. The kind of spelling people second-guess.
- #81,936
- frequency rank, English
- 23,789
- “U” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Ted Kaczynski, the perpetrator of mail bomb attacks in America between 1978 and 1994, so named by the media.
| Property | Value |
|---|---|
| Headword | Unabomber |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈjuːnəbɒmər/ |
| Letters | 9 |
| Frequency rank | #81,936 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Unabomber” sits in English frequency
Rare enough to double-check
Unabomber is uncommon English at frequency #81,936 among 23,789 “U” headwords, classed as aproper noun, transcribed /ˈjuːnəbɒmər/. Rarity is why readers land here mid-draft. Gloss: "Ted Kaczynski, the perpetrator of mail bomb attacks in America between 1978 and 1994, so named by the media.".
Unabomber doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: From University and Airline Bomber, a name assigned by the FBI. The correct English form is Unabomber, spelled U-N-A-B-O-M-B-E-R.
Definition
- 1Ted Kaczynski, the perpetrator of mail bomb attacks in America between 1978 and 1994, so named by the media.
Etymology
From University and Airline Bomber, a name assigned by the FBI.
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 “Unabomber”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-A-B-O-M-B-E-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈjuːnəbɒmər/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.