monkey wrench

noun

"monkey-wrench" is a 12-letter English headword indexed on PlainSpell.

The verdict

“monkey wrench” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A wrench (spanner) with an adjustable jaw.

Corpus desk

Index EN-monkey-wrench · monkey wrench · English

monkey wrench · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-4 4 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 monkey wrench
PropertyValue
Headwordmonkey wrench
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “monkey wrench” in English

monkey wrenchranks 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

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

monkey wrench has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: Already in use, and not unfamiliar among mechanics, by 1832; see discussion and references at Monkey wrench § Etymology and history. The correct English form is monkey wrench, spelled M-O-N-K-E-Y- -W-R-E-N-C-H.

Definition

  1. 1
    A wrench (spanner) with an adjustable jaw.
  2. 2
    An unexpected or troublesome problem, obstacle or dilemma.

Recorded use

Wiktionary examples

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

  1. Did you ever stop to think whether or not you knew how a monkey wrench should be used?
  2. With a monkey wrench on the hexagonal part of the stuffing box unscrew the stuffing box from the body of the faucet.

Etymology

Already in use, and not unfamiliar among mechanics, by 1832; see discussion and references at Monkey wrench § Etymology and history.

Synonyms

gas gripsadjustable spannerpipe wrenchbobbejaan spanner

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 "monkey wrench"?
"monkey wrench" is spelled M-O-N-K-E-Y- -W-R-E-N-C-H.
What does "monkey wrench" mean?
As a noun, "monkey wrench" means: A wrench (spanner) with an adjustable jaw.
What is the origin of the word "monkey wrench"?
Already in use, and not unfamiliar among mechanics, by 1832; see discussion and references at Monkey wrench § Etymology and history. 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