knock it off

verb

"knock-it-off" is a 10-letter English headword indexed on PlainSpell.

The verdict

“knock it off” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To cease doing something, particularly annoying or unpleasant; to desist.

Key facts for knock it off
PropertyValue
Headwordknock it off
LanguageEnglish
Part of speechVerb
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “knock it off” sits in English frequency

knock it off 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.

Spelling & Dictionary Insight

The English entry for knock it off is 12 letters long, classified as a verb. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "To cease doing something, particularly annoying or unpleasant; to desist.".

knock it off doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This entry carries no recorded etymology, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is knock it off, spelled K-N-O-C-K- -I-T- -O-F-F.

Definition

  1. 1
    To cease doing something, particularly annoying or unpleasant; to desist.

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 "knock it off"?
"knock it off" is spelled K-N-O-C-K- -I-T- -O-F-F.
What does "knock it off" mean?
As a verb, "knock it off" means: To cease doing something, particularly annoying or unpleasant; to desist.
What language does "knock it off" come from?
"knock it off" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 “knock it off”

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

  • The one correct English spelling is K-N-O-C-K- -I-T- -O-F-F - 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