indium
/ˈɪndi.əm/
"indium" is a 6-letter English headword indexed on PlainSpell.
The verdict
“indium” is uncommon English (frequency #56,828 among 17,902 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #56,828
- frequency rank, English
- 17,902
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A chemical element (symbol In) with an atomic number of 49: a soft silvery-white metal.
| Property | Value |
|---|---|
| Headword | indium |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɪndi.əm/ |
| Letters | 6 |
| Frequency rank | #56,828 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “indium” sits in English frequency
Rare enough to double-check
indium is uncommon English at frequency #56,828 among 17,902 “I” headwords, classed as anoun, transcribed /ˈɪndi.əm/. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for indium, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: Coined as a New Latin term from German Indigo (“indigo”), based on the color of its spectral lines. The correct English form is indium, spelled I-N-D-I-U-M.
Definition
- 1A chemical element (symbol In) with an atomic number of 49: a soft silvery-white metal.
- 2A single atom of this element.
Etymology
Coined as a New Latin term from German Indigo (“indigo”), based on the color of its spectral lines.
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
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Using “indium”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N-D-I-U-M - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɪndi.əm/ (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.