overnight

/əʊvə(ɹ)ˈnaɪt/

//əʊvə(ɹ)ˈnaɪt// adv

"overnight" is a 9-letter English headword indexed on PlainSpell.

The verdict

“overnight” has 14 generated spelling variants in the English index at frequency #5,241. The variants make it a useful spelling check.

#5,241
frequency rank, English
15,494
“O” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - During or throughout the night, especially during the evening or night just past.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

overnight vs oversight
89% similar
overnight vs overweight
80% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for overnight
PropertyValue
Headwordovernight
LanguageEnglish
Part of speechAdverb
IPA/əʊvə(ɹ)ˈnaɪt/
Letters9
Frequency rank#5,241
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “overnight” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). overnight lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around overnight (IPA /əʊvə(ɹ)ˈnaɪt/), anadverb. Corpus frequency is #5,241 among 15,494 “O” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for overnight, with forms such as "oevrnight", "ovenright", and "overinght". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "oversight", "overweight", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Inherited from Middle English overnyght, from Old English ofer niht (“through the night, overnight”), equivalent to over + night. Verbal use (late 19th c.) may have been influenced by German übernachten (16th c.), though it could also have developed indepen… The correct English form is overnight, spelled O-V-E-R-N-I-G-H-T.

Definition

  1. 1
    During or throughout the night, especially during the evening or night just past.
  2. 2
    In a very short (but unspecified) amount of time.

Etymology

Inherited from Middle English overnyght, from Old English ofer niht (“through the night, overnight”), equivalent to over + night. Verbal use (late 19th c.) may have been influenced by German übernachten (16th c.), though it could also have developed independently. Compare also Dutch overnachten (“to overnight”), Middle Low German ȫvernachten (“to overnight”), West Frisian oernachtsje (“to overnight”), Saterland Frisian uurnoachtje (“to overnight”).

This word in other languages

Common misspellings

Also misspelled as:

  • oevrnight
  • ovenright
  • overinght
  • overngiht
  • overnigght
  • overnighht
  • overnightt
  • overnigth
  • overnihgt
  • overnnight
  • overrnight
  • ovrenight
  • ovvernight
  • voernight

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of overnight - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

oevrnight2ovenright2overinght2overngiht2overnigght1overnighht1overnightt1overnigth2
Edit distance from "overnight"

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 "overnight"?
"overnight" is spelled O-V-E-R-N-I-G-H-T. The IPA pronunciation is /əʊvə(ɹ)ˈnaɪt/.
What does "overnight" mean?
As an adverb, "overnight" means: During or throughout the night, especially during the evening or night just past.
What words are commonly confused with "overnight"?
"overnight" is commonly confused with "oversight", "overweight". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "overnight"?
The IPA (International Phonetic Alphabet) transcription for "overnight" is /əʊvə(ɹ)ˈnaɪt/. 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 "overnight"?
Inherited from Middle English overnyght, from Old English ofer niht (“through the night, overnight”), equivalent to over + night. Verbal use (late 19th c.) may have been influenced by German übernachten (16th c.), though it could also have develop... 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 “overnight”

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

  • The one correct English spelling is O-V-E-R-N-I-G-H-T - every other letter order is a misspelling in standard orthography.
  • Say it as /əʊvə(ɹ)ˈnaɪt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “oversight” - see the side-by-side comparison. overnight vs oversight
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

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