diluent

/ˈdɪljuənt/

//ˈdɪljuənt// noun

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

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

The verdict

“diluent” is uncommon English (frequency #85,176 among 26,416 “D” headwords), classed as a noun. The kind of spelling people second-guess.

#85,176
frequency rank, English
26,416
“D” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - That which dilutes.

Key facts for diluent
PropertyValue
Headworddiluent
LanguageEnglish
Part of speechNoun
IPA/ˈdɪljuənt/
Letters7
Frequency rank#85,176
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “diluent” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

diluent is uncommon English at frequency #85,176 among 26,416 “D” headwords, classed as anoun, transcribed /ˈdɪljuənt/. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for diluent in our index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Latin diluens, from diluere. See dilute. The correct English form is diluent, spelled D-I-L-U-E-N-T.

Definition

  1. 1
    That which dilutes.
  2. 2
    A solvent or other liquid preparation used to dilute a sample prior to testing.
  3. 3
    An agent used for effecting dilution of the blood; a weak drink.

Etymology

Latin diluens, from diluere. See dilute.

Synonyms

dilutantdiluterthinner

This word in other languages

diluyente(Español)Verdünner(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 "diluent"?
"diluent" is spelled D-I-L-U-E-N-T. The IPA pronunciation is /ˈdɪljuənt/.
What does "diluent" mean?
As a noun, "diluent" means: That which dilutes.
How do you pronounce "diluent"?
The IPA (International Phonetic Alphabet) transcription for "diluent" is /ˈdɪljuənt/. 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 "diluent"?
Latin diluens, from diluere. See dilute. 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.

Using “diluent”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is D-I-L-U-E-N-T - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈdɪljuənt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list