mayfly

noun

"mayfly" is a 6-letter English headword indexed on PlainSpell.

The verdict

“mayfly” is uncommon English (frequency #91,787 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#91,787
frequency rank, English
4,057
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of the many fragile insects of the order Ephemeroptera that develop in fresh water and live very briefly as winged adults.

Corpus desk

Index EN-mayfly · mayfly · English

mayfly · rank #91,787 · 0 variants · 0 confusables

  • FREQ-RARE #91,787
  • LEN-LONG 6 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH Meaux

Nearest frequency peer: Meaux (+2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “mayfly”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “mayfly” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for mayfly
PropertyValue
Headwordmayfly
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#91,787
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “mayfly” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).mayflyfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Meaux” (#91,789), “Matts” (#91,784), “mattering” (#91,783). Among 4,057 “M” headwords, “mayfly” is #91,787. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

mayfly is uncommon English at frequency #91,787 among 4,057 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

mayfly doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From May + fly. Compare Saterland Frisian Moaifljooge (“blowfly”). The correct English form is mayfly, spelled M-A-Y-F-L-Y.

Definition

  1. 1
    Any of the many fragile insects of the order Ephemeroptera that develop in fresh water and live very briefly as winged adults.
  2. 2
    Characterized by a short duration; short-lived.

Recorded use

Wiktionary examples

These source excerpts show how mayfly appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. While some animals take months to reproduce, mayfly need just one perfect day.
  2. [A] silver fish clooped a lazy arc downstream, not really caring that the mayfly were out of reach; […]

Etymology

From May + fly. Compare Saterland Frisian Moaifljooge (“blowfly”).

This word in other languages

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

How do you spell "mayfly"?
"mayfly" is spelled M-A-Y-F-L-Y.
What does "mayfly" mean?
As a noun, "mayfly" means: Any of the many fragile insects of the order Ephemeroptera that develop in fresh water and live very briefly as winged adults.
What is the origin of the word "mayfly"?
From May + fly. Compare Saterland Frisian Moaifljooge (“blowfly”). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "mayfly", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 6 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list