by day
"by-day" is a 5-letter English headword indexed on PlainSpell.
The verdict
“by day” is uncommon English (outside the top frequency list), classed as a prep_phrase. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - During the day.
Corpus desk
Index EN-by-day · by day · English
by day · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 6 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "B" 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.
| Property | Value |
|---|---|
| Headword | by day |
| Language | English |
| Part of speech | Prep_phrase |
| Letters | 6 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “by day” in English
Rare enough to double-check
by day is uncommon English outside the top frequency list, classed as aprep_phrase. Rarity is why readers land here mid-draft. Gloss: "During the day.".
No misspelling variants are generated for by day in our index, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is by day, spelled B-Y- -D-A-Y.
Definition
- 1During the day.
Recorded use
Wiktionary exampleThese source excerpts show how by day appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
He is a policeman by day and a thief by night.
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.