dog days

/ˈdɒɡ deɪz/

//ˈdɒɡ deɪz// noun

"dog-days" is a 7-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The days following the heliacal rising of Sirius, now in early August (Gregorian) at dates varying by latitude.

Corpus desk

Index EN-dog-days · dog days · English

dog days · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-3 3 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 dog days
PropertyValue
Headworddog days
LanguageEnglish
Part of speechNoun
IPA/ˈdɒɡ deɪz/
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “dog days” in English

dog dayssits 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

dog days is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈdɒɡ deɪz/. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for dog days, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Calque of Latin diēs caniculārēs (“puppy days”), a calque of Ancient Greek κυνάδες ἡμέραι (kunádes hēmérai, “dog days”), from κυνάς (kunás, “of or related to dogs”), from Κῠ́ων (Kŭ́ōn, “the Dog”) in reference to the star Sirius, which appears in Homeric Gre… The correct English form is dog days, spelled D-O-G- -D-A-Y-S.

Definition

  1. 1
    The days following the heliacal rising of Sirius, now in early August (Gregorian) at dates varying by latitude.
  2. 2
    The unpleasantly hot days of late summer.
  3. 3
    Any similar period of inactivity, laziness, or stagnation.

Recorded use

Wiktionary examples

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

  1. ... a sterre, wherof canicular or dogge days be named Dies caniculares.
  2. Dog days bright and clear Indicate a good year; But when accompanied by rain, We hope for better times in vain.

Etymology

Calque of Latin diēs caniculārēs (“puppy days”), a calque of Ancient Greek κυνάδες ἡμέραι (kunádes hēmérai, “dog days”), from κυνάς (kunás, “of or related to dogs”), from Κῠ́ων (Kŭ́ōn, “the Dog”) in reference to the star Sirius, which appears in Homeric Greek as "Orion's dog". The return of Sirius to the night sky (its heliacal rising), occurring in antiquity around July 25 (Athens) or 29 (Rome), was considered by the Greeks and Romans to herald what were considered the hottest, least healthy, and least lucky days of summer.

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 "dog days"?
"dog days" is spelled D-O-G- -D-A-Y-S. The IPA pronunciation is /ˈdɒɡ deɪz/.
What does "dog days" mean?
As a noun, "dog days" means: The days following the heliacal rising of Sirius, now in early August (Gregorian) at dates varying by latitude.
How do you pronounce "dog days"?
The IPA (International Phonetic Alphabet) transcription for "dog days" is /ˈdɒɡ deɪz/. 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 "dog days"?
Calque of Latin diēs caniculārēs (“puppy days”), a calque of Ancient Greek κυνάδες ἡμέραι (kunádes hēmérai, “dog days”), from κυνάς (kunás, “of or related to dogs”), from Κῠ́ων (Kŭ́ōn, “the Dog”) in reference to the star Sirius, which appears in H... 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