reducer

/ɹɪˈdusɚ/

//ɹɪˈdusɚ// noun

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

"reducer" is a 7-letter English headword indexed on PlainSpell.

The verdict

“reducer” is uncommon English (frequency #65,453 among 3,094 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#65,453
frequency rank, English
3,094
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Something or someone that reduces.

Corpus desk

Index EN-reducer · reducer · English

reducer · rank #65,453 · 0 variants · 0 confusables

  • FREQ-RARE #65,453
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH rede

Nearest frequency peer: rede (-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.

Long-tail ranks near “reducer”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “reducer” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for reducer
PropertyValue
Headwordreducer
LanguageEnglish
Part of speechNoun
IPA/ɹɪˈdusɚ/
Letters7
Frequency rank#65,453
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “reducer” in English

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “rede” (#65,452), “rego” (#65,455), “rebroadcast” (#65,449). Among 3,094 “R” headwords, “reducer” is #65,453. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

reducer is uncommon English at frequency #65,453 among 3,094 “R” headwords, classed as anoun, transcribed /ɹɪˈdusɚ/. Rarity is why readers land here mid-draft. 7 senses are on record.

The misspelling generator found no plausible variants for reducer, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From reduce + -er. The correct English form is reducer, spelled R-E-D-U-C-E-R.

Definition

  1. 1
    Something or someone that reduces.
  2. 2
    A reducing agent.
  3. 3
    A hydraulic device for reducing pressure and hence increasing movement, used to transmit the load from the hydraulic support of the lower shackle to the lever weighing apparatus in some kinds of heavy testing machine.
  4. 4
    A liquid used in the process of developing a negative to reduce its darkness.
  5. 5
    A component used to connect two pipes of different bores.
  6. 6
    A function that takes state and action as arguments and returns the next state of the app.
  7. 7
    The reduction of the contribution to a football game of a more talented opponent by intimidation using a brutal tackle.

Recorded use

Wiktionary examples

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

  1. If a floorboard has deep risers, you should use an entrance reducer in winter, to help keep out mice […]
  2. Koulibaly flattens Steven Bergwijn with a reducer from behind but avoids a booking. Bergwijn gets to his feet and blows his cheeks in frustration. I think that really hurt but he doesn’t want to show it.

Etymology

From reduce + -er.

This word in other languages

reductor(Español)réducteur(Français)Reduzierung(Deutsch)

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 "reducer"?
"reducer" is spelled R-E-D-U-C-E-R. The IPA pronunciation is /ɹɪˈdusɚ/.
What does "reducer" mean?
As a noun, "reducer" means: Something or someone that reduces.
How do you pronounce "reducer"?
The IPA (International Phonetic Alphabet) transcription for "reducer" is /ɹɪˈdusɚ/. 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 "reducer"?
From reduce + -er. 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 "reducer", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Riggins#65,463rattler#65,441Rimbaud#65,465roading#65,469

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

Source: FrequencyWords open word-frequency list