night owl

/ˈnaɪt aʊl/

//ˈnaɪt aʊl// noun

"night-owl" is a 8-letter English headword indexed on PlainSpell.

The verdict

“night owl” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An owl (order Strigiformes) that is nocturnal.

Corpus desk

Index EN-night-owl · night owl · English

night owl · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "N" thin
  • PHOTO-UNK Peer pending

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.

Key facts for night owl
PropertyValue
Headwordnight owl
LanguageEnglish
Part of speechNoun
IPA/ˈnaɪt aʊl/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “night owl” in English

night owlranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

night owl is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈnaɪt aʊl/. Rarity is why readers land here mid-draft. 3 senses are on record.

night owl doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From night + owl, from the fact that the bird is active at night. The correct English form is night owl, spelled N-I-G-H-T- -O-W-L.

Definition

  1. 1
    An owl (order Strigiformes) that is nocturnal.
  2. 2
    One who goes to bed late, or stays up late at night or in the early hours of the morning.
  3. 3
    A musical instrument which imitates an owl's hoot, consisting of a receptacle partly filled with water and a mouthpiece that is blown into.

Recorded use

Wiktionary examples

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

  1. Their Weapons like to Lightning, came and went: / Our Souldiers like the Night-Owles lazie flight, / Or like a lazie Threſher with a Flaile, / Fell gently downe, as if they ſtrucke their Friends.
  2. For nightowles ſhreeke where mounting larkes ſhould ſing.

Etymology

From night + owl, from the fact that the bird is active at night.

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 "night owl"?
"night owl" is spelled N-I-G-H-T- -O-W-L. The IPA pronunciation is /ˈnaɪt aʊl/.
What does "night owl" mean?
As a noun, "night owl" means: An owl (order Strigiformes) that is nocturnal.
How do you pronounce "night owl"?
The IPA (International Phonetic Alphabet) transcription for "night owl" is /ˈnaɪt aʊl/. 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 "night owl"?
From night + owl, from the fact that the bird is active at night. 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.

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

Source: FrequencyWords open word-frequency list