day and night

adv

"day-and-night" is a 11-letter English headword indexed on PlainSpell.

The verdict

“day and night” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - All the time; round the clock; unceasingly.

Corpus desk

Index EN-day-and-night · day and night · English

day and night · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" 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 day and night
PropertyValue
Headwordday and night
LanguageEnglish
Part of speechAdverb
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “day and night” in English

day and nightsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

day and night is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "All the time; round the clock; unceasingly.".

We couldn't generate a plausible misspelling set for day and night, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.

No documented word history exists for this headword, 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 day and night, spelled D-A-Y- -A-N-D- -N-I-G-H-T.

Definition

  1. 1
    All the time; round the clock; unceasingly.

Recorded use

Wiktionary examples

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

  1. Oh that my head were waters, and mine eyes a fountain of tears, that I might weep day and night for the slain of the daughter of my people!
  2. We were firing at top speed day and night on counter-battery work, neutralisation, and aeroplane shoots, and all spare men were commandeered to help feed the guns.

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 "day and night"?
"day and night" is spelled D-A-Y- -A-N-D- -N-I-G-H-T.
What does "day and night" mean?
As an adverb, "day and night" means: All the time; round the clock; unceasingly.
What language does "day and night" come from?
"day and night" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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