Aunt Flo

/ɑːnt fləʊ/

//ɑːnt fləʊ// name

"aunt-flo" is a 7-letter English headword indexed on PlainSpell.

The verdict

“Aunt Flo” is outside the top-ranked English vocabulary, used as a proper noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A personification of the menstrual period or menstruation.

Key facts for Aunt Flo
PropertyValue
HeadwordAunt Flo
LanguageEnglish
Part of speechProper noun
IPA/ɑːnt fləʊ/
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Aunt Flo” sits in English frequency

Aunt Flo falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for Aunt Flo is 8 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /ɑːnt fləʊ/. 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: "A personification of the menstrual period or menstruation.".

The misspelling generator found no plausible variants for Aunt Flo, and the word's spelling is regular enough that our generator found nothing worth flagging. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Pun on flow and Flo (nickname for Florence, Flora, etc). The correct English form is Aunt Flo, spelled A-U-N-T- -F-L-O.

Definition

  1. 1
    A personification of the menstrual period or menstruation.

Etymology

Pun on flow and Flo (nickname for Florence, Flora, etc).

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Aunt Flo"?
"Aunt Flo" is spelled A-U-N-T- -F-L-O. The IPA pronunciation is /ɑːnt fləʊ/.
What does "Aunt Flo" mean?
As a proper noun, "Aunt Flo" means: A personification of the menstrual period or menstruation.
How do you pronounce "Aunt Flo"?
The IPA (International Phonetic Alphabet) transcription for "Aunt Flo" is /ɑːnt fləʊ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "Aunt Flo"?
Pun on flow and Flo (nickname for Florence, Flora, etc). 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.

Using “Aunt Flo”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is A-U-N-T- -F-L-O - every other letter order is a misspelling in standard orthography.
  • Say it as /ɑːnt fləʊ/ (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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list