mouthguard
"mouthguard" is a 10-letter English headword indexed on PlainSpell.
The verdict
“mouthguard” is uncommon English (frequency #95,160 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.
- #95,160
- frequency rank, English
- 4,057
- “M” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.
Corpus desk
Index EN-mouthguard · mouthguard · English
mouthguard · rank #95,160 · 0 variants · 0 confusables
- FREQ-RARE #95,160
- LEN-MEGA 10 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,057
- PHOTO-FINISH moxy
Nearest frequency peer: moxy (+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 “mouthguard”
Sparse band: bars invert rank so rarer forms read shorter
- mortier
mortier
4,845 corpus weight
- motherfuck
motherfuck
4,843 corpus weight
- mouthguard
mouthguard
4,841 corpus weight
- moxy
moxy
4,840 corpus weight
- MPLA
MPLA
4,839 corpus weight
- MRAP
MRAP
4,838 corpus weight
What this shows Long-tail view: where “mouthguard” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | mouthguard |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Frequency rank | #95,160 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “mouthguard” in English
Rare enough to double-check
mouthguard is uncommon English at frequency #95,160 among 4,057 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.".
No generated misspelling entries exist for mouthguard in our index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From mouth + guard. The correct English form is mouthguard, spelled M-O-U-T-H-G-U-A-R-D.
Definition
- 1A device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.
Etymology
From mouth + guard.
Synonyms
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.
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "mouthguard", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).