index term

noun

"index-term" is a 9-letter English headword indexed on PlainSpell.

The verdict

“index term” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A term associated with particular documents in an index used for document retrieval; typically, a term that captures the essential meaning of a document.

Corpus desk

Index EN-index-term · index term · English

index term · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "I" thin
  • PHOTO-UNK Peer pending

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.

Key facts for index term
PropertyValue
Headwordindex term
LanguageEnglish
Part of speechNoun
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “index term” in English

index termranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

index term is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A term associated with particular documents in an index used for document retrieval; typically, a term that captures the essential meaning of a document.".

No generated misspelling entries exist for index term in our index, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry's etymology isn't recorded, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is index term, spelled I-N-D-E-X- -T-E-R-M.

Definition

  1. 1
    A term associated with particular documents in an index used for document retrieval; typically, a term that captures the essential meaning of a document.

Recorded use

Wiktionary examples

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

  1. This includes a term dictionary that provides for each allowable index term a pointer giving the addresses of the document lists in the term index for the corresponding term; […]
  2. If the indexing is being performed automatically, by an algorithm, there is consistency in the index term selection process.

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "index term"?
"index term" is spelled I-N-D-E-X- -T-E-R-M.
What does "index term" mean?
As a noun, "index term" means: A term associated with particular documents in an index used for document retrieval; typically, a term that captures the essential meaning of a document.
What language does "index term" come from?
"index term" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

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

Source: FrequencyWords open word-frequency list