interglacial
"interglacial" is a 12-letter English headword indexed on PlainSpell.
The verdict
“interglacial” is uncommon English (frequency #83,375 among 2,140 “I” headwords), classed as an adjective. The kind of spelling people second-guess.
- #83,375
- frequency rank, English
- 2,140
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Occurring between glaciations (colloquially known as ice ages).
Corpus desk
Index EN-interglacial · interglacial · English
interglacial · rank #83,375 · 0 variants · 0 confusables
- FREQ-RARE #83,375
- LEN-MEGA 12 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,140
- PHOTO-FINISH insigne
Nearest frequency peer: insigne (-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 “interglacial”
Sparse band: bars invert rank so rarer forms read shorter
- indexer
indexer
16,631 corpus weight
- insigne
insigne
16,627 corpus weight
- interglacial
interglacial
16,626 corpus weight
- intrust
intrust
16,624 corpus weight
- invitee
invitee
16,623 corpus weight
- ironical
ironical
16,622 corpus weight
What this shows Long-tail view: where “interglacial” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | interglacial |
| Language | English |
| Part of speech | Adjective |
| Letters | 12 |
| Frequency rank | #83,375 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “interglacial” in English
Rare enough to double-check
interglacial is uncommon English at frequency #83,375 among 2,140 “I” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Occurring between glaciations (colloquially known as ice ages).".
No generated misspelling entries exist for interglacial in our index, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From inter- + glacial. The correct English form is interglacial, spelled I-N-T-E-R-G-L-A-C-I-A-L.
Definition
- 1Occurring between glaciations (colloquially known as ice ages).
Recorded use
Wiktionary exampleThese source excerpts show how interglacial appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Palaeoenvironmental evidence from northwest Europe indicates that the oligocratic phase of the interglacial cycle (Fig. 3.1) had begun by ca. 5K years BP.
Etymology
From inter- + glacial.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "interglacial", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).