no doubt

adv

"no-doubt" is a 7-letter English headword indexed on PlainSpell.

The verdict

“no doubt” is uncommon English (outside the top frequency list), classed as an adverb. 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) - without a doubt; surely.

Corpus desk

Index EN-no-doubt · no doubt · English

no doubt · 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 "N" 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 no doubt
PropertyValue
Headwordno doubt
LanguageEnglish
Part of speechAdverb
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “no doubt” in English

no doubtranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

no doubt is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "without a doubt; surely.".

Zero misspellings are on record for no doubt in our index, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Inherited from Middle English ne doute, a calque of Old French saunz doute, itself borrowed unadapted into Middle English. The correct English form is no doubt, spelled N-O- -D-O-U-B-T.

Definition

  1. 1
    without a doubt; surely.

Recorded use

Wiktionary examples

These source excerpts show how no doubt appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. No doubt you can provide a better definition//that is, there's no doubt that you can.
  2. […] the neglect of domestic duties, on the part of many wives, is, no doubt, attributable to the slovenly tenements, and inadequate providings, and careless neglect of the husbands.

Etymology

Inherited from Middle English ne doute, a calque of Old French saunz doute, itself borrowed unadapted into Middle English.

Synonyms

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 "no doubt"?
"no doubt" is spelled N-O- -D-O-U-B-T.
What does "no doubt" mean?
As an adverb, "no doubt" means: without a doubt; surely.
What is the origin of the word "no doubt"?
Inherited from Middle English ne doute, a calque of Old French saunz doute, itself borrowed unadapted into Middle English. 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