by and by

adv

"by-and-by" is a 7-letter English headword indexed on PlainSpell.

The verdict

“by and by” is uncommon English (outside the top frequency list), classed as an adverb. 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) - After a short time.

Corpus desk

Index EN-by-and-by · by and by · English

by and by · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 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.

Key facts for by and by
PropertyValue
Headwordby and by
LanguageEnglish
Part of speechAdverb
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “by and by” in English

by and bysits 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

by and by is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for by and by, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From Middle English by and by (“side by side, close together, alongside, on and on, continually, again and again, repeatedly”), equivalent to by + and + by. The correct English form is by and by, spelled B-Y- -A-N-D- -B-Y.

Definition

  1. 1
    After a short time.
  2. 2
    After an indefinite period.
  3. 3
    Immediately; at once.

Recorded use

Wiktionary examples

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

  1. O, how this spring of love resembleth The uncertain glory of an April day Which now shows all the beauty of the sun, And by and by a cloud takes all away!
  2. Two anons and a by and by is an hour and a half.

Etymology

From Middle English by and by (“side by side, close together, alongside, on and on, continually, again and again, repeatedly”), equivalent to by + and + by.

Synonyms

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 "by and by"?
"by and by" is spelled B-Y- -A-N-D- -B-Y.
What does "by and by" mean?
As an adverb, "by and by" means: After a short time.
What is the origin of the word "by and by"?
From Middle English by and by (“side by side, close together, alongside, on and on, continually, again and again, repeatedly”), equivalent to by + and + by. 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