muscle in

verb

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

The verdict

“muscle in” is uncommon English (outside the top frequency list), classed as a verb. 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) - To interfere, or intrude forcibly.

Corpus desk

Index EN-muscle-in · muscle in · English

muscle in · 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 "M" 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 muscle in
PropertyValue
Headwordmuscle in
LanguageEnglish
Part of speechVerb
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “muscle in” in English

muscle insits 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

muscle in is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "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.

Recorded use

Wiktionary example

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

  1. The Government's £500 million Restoring Your Railway initiative - awarding small grants to put back lines that should never have been closed - has turned into a muddle because backers of multi-million pound projects have also muscled in.

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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list