muscle in

verb

"muscle-in" is a 8-letter English headword indexed on PlainSpell.

The verdict

“muscle in” 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
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To interfere, or intrude forcibly.

Key facts for muscle in
PropertyValue
Headwordmuscle in
LanguageEnglish
Part of speechVerb
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “muscle in” sits in English frequency

muscle in 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 muscle in is 9 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 interfere, or intrude forcibly.".

muscle in doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry's etymology isn't recorded, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is muscle in, spelled M-U-S-C-L-E- -I-N.

Definition

  1. 1
    To interfere, or intrude forcibly.

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 "muscle in"?
"muscle in" is spelled M-U-S-C-L-E- -I-N.
What does "muscle in" mean?
As a verb, "muscle in" means: To interfere, or intrude forcibly.
What language does "muscle in" come from?
"muscle in" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “muscle in”

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

  • The one correct English spelling is M-U-S-C-L-E- -I-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