gear ratio

noun

"gear-ratio" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The ratio of the speeds of rotation of two gears, such as any pair that mesh and, especially, the initial and final gears in a gear train (whose relationship incorporates all the intermediate ones).

Corpus desk

Index EN-gear-ratio · gear ratio · English

gear ratio · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "G" 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 gear ratio
PropertyValue
Headwordgear ratio
LanguageEnglish
Part of speechNoun
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “gear ratio” in English

gear ratiofalls 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.

Rare enough to double-check

gear ratio is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The ratio of the speeds of rotation of two gears, such as any pair that mesh and, especially, the initial and final gears in a gear train (whose relationship incorporates all the intermediate ones).".

gear ratio doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is gear ratio, spelled G-E-A-R- -R-A-T-I-O.

Definition

  1. 1
    The ratio of the speeds of rotation of two gears, such as any pair that mesh and, especially, the initial and final gears in a gear train (whose relationship incorporates all the intermediate ones).

Recorded use

Wiktionary example

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

  1. Two versions exist of the new locomotives, for passenger and for freight work respectively, the technical difference between the two lying in the gearing of the bogies; the passenger locomotives, in light green and pearl grey livery, have a 25:64 gear ratio to haul 12-coach, 450-ton trains at 87 m.p.h. on the level, and the freight locomotives, in the fam…

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 "gear ratio"?
"gear ratio" is spelled G-E-A-R- -R-A-T-I-O.
What does "gear ratio" mean?
As a noun, "gear ratio" means: The ratio of the speeds of rotation of two gears, such as any pair that mesh and, especially, the initial and final gears in a gear train (whose relationship incorporates all the intermediate ones).
What language does "gear ratio" come from?
"gear ratio" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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