fly by
"fly-by" is a 5-letter English headword indexed on PlainSpell.
The verdict
“fly by” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Used other than figuratively or idiomatically: see fly, by.
| Property | Value |
|---|---|
| Headword | fly by |
| Language | English |
| Part of speech | Verb |
| Letters | 6 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “fly by” sits in English frequency
Spelling & Dictionary Insight
The English entry for fly by is 6 letters long, classified as a verb. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
fly by doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
This headword's origin isn't recorded in our source data, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is fly by, spelled F-L-Y- -B-Y.
Definition
- 1Used other than figuratively or idiomatically: see fly, by.
- 2To pass or go past quickly, often without much interaction
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 “fly by”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is F-L-Y- -B-Y - 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.