toluene

/ˈtɒl.juː.iːn/

//ˈtɒl.juː.iːn// noun

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

The verdict

“toluene” is uncommon English (frequency #59,768 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.

#59,768
frequency rank, English
3,151
“T” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A colourless, inflammable liquid hydrocarbon, methylbenzene, CH₃.C₆H₅, used as a solvent, in high-octane fuels and in the production of many chemical compounds.

Corpus desk

Index EN-toluene · toluene · English

toluene · rank #59,768 · 0 variants · 0 confusables

  • FREQ-RARE #59,768
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH trainwreck

Nearest frequency peer: trainwreck (+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 “toluene”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for toluene
PropertyValue
Headwordtoluene
LanguageEnglish
Part of speechNoun
IPA/ˈtɒl.juː.iːn/
Letters7
Frequency rank#59,768
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “toluene” 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).toluenefalls 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: “trainwreck” (#59,769), “Tindall” (#59,766), “Timorese” (#59,765). Among 3,151 “T” headwords, “toluene” is #59,768. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

toluene is uncommon English at frequency #59,768 among 3,151 “T” headwords, classed as anoun, transcribed /ˈtɒl.juː.iːn/. Rarity is why readers land here mid-draft. Gloss: "A colourless, inflammable liquid hydrocarbon, methylbenzene, CH₃.C₆H₅, used as a solvent, in high-octane fuels and in the production of many chemical compounds.".

No generated misspelling entries exist for toluene in our index, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From German Toluin, from Tolu (Tolú) where it was first distilled. The correct English form is toluene, spelled T-O-L-U-E-N-E.

Definition

  1. 1
    A colourless, inflammable liquid hydrocarbon, methylbenzene, CH₃.C₆H₅, used as a solvent, in high-octane fuels and in the production of many chemical compounds.

Recorded use

Wiktionary example

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

  1. The salon is also a kitchen where, in the back rooms, our women squat on the floor over huge woks that pop and sizzle over electric burners, cauldrons of phở simmer and steam up the cramped spaces with aromas of cloves, cinnamon, ginger, mint, and cardamom mixing with formaldehyde, toluene, acetone, Pine-Sol, and bleach.

Etymology

From German Toluin, from Tolu (Tolú) where it was first distilled.

Synonyms

benzeneaminemethylbenzenephenylmethanetoluol

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); 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 "toluene"?
"toluene" is spelled T-O-L-U-E-N-E. The IPA pronunciation is /ˈtɒl.juː.iːn/.
What does "toluene" mean?
As a noun, "toluene" means: A colourless, inflammable liquid hydrocarbon, methylbenzene, CH₃.C₆H₅, used as a solvent, in high-octane fuels and in the production of many chemical compounds.
How do you pronounce "toluene"?
The IPA (International Phonetic Alphabet) transcription for "toluene" is /ˈtɒl.juː.iːn/. 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 "toluene"?
From German Toluin, from Tolu (Tolú) where it was first distilled. 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 "toluene", not the corpus desk frequency band.

Same letter count

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

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

Source: FrequencyWords open word-frequency list