rotor

/ˈɹəʊ.tə/

//ˈɹəʊ.tə// noun

By · According to Wiktionary data (CC BY-SA) ·

"rotor" is a 5-letter English headword indexed on PlainSpell.

The verdict

“rotor” has 7 generated spelling variants in the English index at frequency #16,789. The variants make it a useful spelling check.

#16,789
frequency rank, English
3,094
“R” headwords
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.

Corpus desk

Index EN-rotor · rotor · English

rotor · rank #16,789 · 7 variants · 20 confusables

  • FREQ-MID #16,789
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 7 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH rigging

Nearest frequency peer: rigging (-1 rank slots)

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.

Rank peers near misspelling magnet “rotor”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “rotor” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

rotor vs ROTS
0% similar
rotor vs rover
60% similar
rotor vs rumor
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for rotor
PropertyValue
Headwordrotor
LanguageEnglish
Part of speechNoun
IPA/ˈɹəʊ.tə/
Letters5
Frequency rank#16,789
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “rotor”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).rotorlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “rigging” (#16,788), “sediment” (#16,790), “replication” (#16,787). Among 3,094 “R” headwords, “rotor” is #16,789. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 7 spelling variants around rotor (IPA /ˈɹəʊ.tə/), anoun. Corpus frequency is #16,789 among 3,094 “R” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

Our generated misspelling index lists 7 likely wrong-spelling variants for rotor, with forms such as "ortor", "rootr", and "rotorr". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "ROTS", "rover", "rumor", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From an irregular clipping of rotator, originally in mathematics, coined by English mathematician and philosopher William Kingdon Clifford based on vector, see quotations. Doublet of rota and ruote. The correct English form is rotor, spelled R-O-T-O-R.

Definition

  1. 1
    A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
  2. 2
    A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
  3. 3
    A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
  4. 4
    A type of powerful horizontal-axis atmospheric vortex generated by the interaction of strong winds with mountainous terrain.
  5. 5
    A quantity having magnitude, direction, and position.
  6. 6
    The set of cells within an oscillator that switch between being alive and dead over the course of the oscillator's period.
  7. 7
    An amusement park and carnival ride consisting of a rotating cylindrical chamber in which centrifugal force adheres riders to the wall as the floor drops away, creating a sensation of defying gravity.

Recorded use

Wiktionary examples

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

  1. Turbines have been around for a long time—windmills and water wheels are early examples. The name comes from the Latin turbo, meaning vortex, and thus the defining property of a turbine is that a fluid or gas turns the blades of a rotor, which is attached to a shaft that can perform useful work.
  2. A glider instructor, who had been in the COS area for more than 25 years, was interviewed. He stated that around 1200 on the day of the accident, he observed a rotor hit the ground with estimated wind speeds of 70 to 80 miles per hour.

Etymology

From an irregular clipping of rotator, originally in mathematics, coined by English mathematician and philosopher William Kingdon Clifford based on vector, see quotations. Doublet of rota and ruote.

This word in other languages

rotor(Español)rotor(Français)Rotor(Deutsch)

Common misspellings

Also misspelled as:

  • ortor
  • rootr
  • rotorr
  • rotro
  • rottor
  • rrotor
  • rtoor

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of rotor - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ortor2rootr2rotorr1rotro2rottor1rrotor1rtoor2
Edit distance from "rotor"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "rotor"?
"rotor" is spelled R-O-T-O-R. The IPA pronunciation is /ˈɹəʊ.tə/.
What does "rotor" mean?
As a noun, "rotor" means: A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
What words are commonly confused with "rotor"?
"rotor" is commonly confused with "ROTS", "rover", "rumor". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "rotor"?
The IPA (International Phonetic Alphabet) transcription for "rotor" is /ˈɹəʊ.tə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "rotor"?
From an irregular clipping of rotator, originally in mathematics, coined by English mathematician and philosopher William Kingdon Clifford based on vector, see quotations. Doublet of rota and ruote. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "rotor", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

Papua#16,765ozone#16,764nylon#16,762muted#16,759

Similar misspelling depth

Headwords with a similar count of attested misspellings (7 here; floor ≥5).

turret7 variantsmorrow7 variantsvoodoo7 variantsWigan7 variants

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

Source: FrequencyWords open word-frequency list