bye-bye
/baɪˈbaɪ/
"bye-bye" is a 6-letter English headword indexed on PlainSpell.
The verdict
“bye-bye” is outside the top-ranked English vocabulary, used as an interjection - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Goodbye.
| Property | Value |
|---|---|
| Headword | bye-bye |
| Language | English |
| Part of speech | Interjection |
| IPA | /baɪˈbaɪ/ |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “bye-bye” sits in English frequency
Spelling & Dictionary Insight
The English entry for bye-bye is 7 letters long, classified as an interjection, and transcribed in the International Phonetic Alphabet as /baɪˈbaɪ/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Goodbye.".
Zero misspellings are on record for bye-bye in our index, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: Reduplication of bye. The correct English form is bye-bye, spelled B-Y-E---B-Y-E.
Definition
- 1Goodbye.
Etymology
Reduplication of bye.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “bye-bye”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-Y-E---B-Y-E - every other letter order is a misspelling in standard orthography.
- Say it as /baɪˈbaɪ/ (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
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.