thiamine

/ˈθaɪ.ə.min/

//ˈθaɪ.ə.min// noun

"thiamine" is a 8-letter English headword indexed on PlainSpell.

The verdict

“thiamine” is uncommon English (frequency #69,510 among 27,828 “T” headwords), classed as a noun. The kind of spelling people second-guess.

#69,510
frequency rank, English
27,828
“T” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.

Key facts for thiamine
PropertyValue
Headwordthiamine
LanguageEnglish
Part of speechNoun
IPA/ˈθaɪ.ə.min/
Letters8
Frequency rank#69,510
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “thiamine” 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). thiamine 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

thiamine is uncommon English at frequency #69,510 among 27,828 “T” headwords, classed as anoun, transcribed /ˈθaɪ.ə.min/. Rarity is why readers land here mid-draft. Gloss: "One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.".

thiamine has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. 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 thio- + amine. The correct English form is thiamine, spelled T-H-I-A-M-I-N-E.

Definition

  1. 1
    One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.

Etymology

From thio- + amine.

Synonyms

vitamin B1

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 "thiamine"?
"thiamine" is spelled T-H-I-A-M-I-N-E. The IPA pronunciation is /ˈθaɪ.ə.min/.
What does "thiamine" mean?
As a noun, "thiamine" means: One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.
How do you pronounce "thiamine"?
The IPA (International Phonetic Alphabet) transcription for "thiamine" is /ˈθaɪ.ə.min/. 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 "thiamine"?
From thio- + amine. 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 “thiamine”

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

  • The one correct English spelling is T-H-I-A-M-I-N-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈθaɪ.ə.min/ (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