by design

prep_phrase

"by-design" is a 8-letter English headword indexed on PlainSpell.

The verdict

“by design” 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
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Intentionally, on purpose.

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

Where “by design” sits in English frequency

by design falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

by design is uncommon English outside the top frequency list, classed as aprep_phrase. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for by design in our index, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This headword's origin isn't recorded in our source data, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is by design, spelled B-Y- -D-E-S-I-G-N.

Definition

  1. 1
    Intentionally, on purpose.
  2. 2
    Designed specifically for a given purpose, to have a particular feature.

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 design"?
"by design" is spelled B-Y- -D-E-S-I-G-N.
What does "by design" mean?
As a prep_phrase, "by design" means: Intentionally, on purpose.
What language does "by design" come from?
"by design" 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.

Using “by design”

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

  • The one correct English spelling is B-Y- -D-E-S-I-G-N - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
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