air mattress
"air-mattress" is a 11-letter English headword indexed on PlainSpell.
The verdict
“air mattress” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 12
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A mattress that is inflated with air, and used as a temporary or permanent bed.
Corpus desk
Index EN-air-mattress · air mattress · English
air mattress · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 12 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "A" 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.
| Property | Value |
|---|---|
| Headword | air mattress |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “air mattress” in English
Rare enough to double-check
air mattress is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A mattress that is inflated with air, and used as a temporary or permanent bed.".
No generated misspelling entries exist for air mattress in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From air + mattress. The correct English form is air mattress, spelled A-I-R- -M-A-T-T-R-E-S-S.
Definition
- 1A mattress that is inflated with air, and used as a temporary or permanent bed.
Etymology
From air + mattress.
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.