smokestack

/ˈsmoʊkˌstæk/

//ˈsmoʊkˌstæk// noun

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

"smokestack" is a 10-letter English headword indexed on PlainSpell.

The verdict

“smokestack” is uncommon English (frequency #75,426 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#75,426
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.

Corpus desk

Index EN-smokestack · smokestack · English

smokestack · rank #75,426 · 0 variants · 0 confusables

  • FREQ-RARE #75,426
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH Smirnov

Nearest frequency peer: Smirnov (-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 “smokestack”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for smokestack
PropertyValue
Headwordsmokestack
LanguageEnglish
Part of speechNoun
IPA/ˈsmoʊkˌstæk/
Letters10
Frequency rank#75,426
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “smokestack” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).smokestackfalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Smirnov” (#75,425), “snubbing” (#75,427), “smallmouth” (#75,424). Among 6,566 “S” headwords, “smokestack” is #75,426. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

smokestack is uncommon English at frequency #75,426 among 6,566 “S” headwords, classed as anoun, transcribed /ˈsmoʊkˌstæk/. Rarity is why readers land here mid-draft. Gloss: "A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.".

Zero misspellings are on record for smokestack in our index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From smoke + stack. The correct English form is smokestack, spelled S-M-O-K-E-S-T-A-C-K.

Definition

  1. 1
    A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.

Recorded use

Wiktionary examples

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

  1. With its long tapered cowcatcher, massive headlamp and enormous diamond smokestack behind, wagon-top boiler, high running-plate above the driving-wheels reached from a front door in the square side-window cab, cylinders with slide valves mounted on top, and double bogie tender, General in its present form is typical of much earlier American locomotive pra…
  2. One of those areas can be found at the city’s northern edge, where the towering smokestacks of Wuhan Iron and Steel loom behind bent-backed farmers tending vegetable patches. Today Qingshan district is a patchwork of tiny fields, polluted streams and roadside markets selling building materials. But the city government is in the process of transforming thi…

Etymology

From smoke + stack.

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 "smokestack"?
"smokestack" is spelled S-M-O-K-E-S-T-A-C-K. The IPA pronunciation is /ˈsmoʊkˌstæk/.
What does "smokestack" mean?
As a noun, "smokestack" means: A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.
How do you pronounce "smokestack"?
The IPA (International Phonetic Alphabet) transcription for "smokestack" is /ˈsmoʊkˌstæk/. 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 "smokestack"?
From smoke + stack. 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 "smokestack", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

smallmouth#75,424soothsayer#75,432spasticity#75,434shovelling#75,408

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

Source: FrequencyWords open word-frequency list