glass jaw
"glass-jaw" is a 8-letter English headword indexed on PlainSpell.
The verdict
“glass jaw” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A fighting vulnerability where one is easily knocked out via a single hard blow to the chin or jaw (due to lack of conditioning, insufficient training, or damage from past cerebral concussions).
Corpus desk
Index EN-glass-jaw · glass jaw · English
glass jaw · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "G" 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 | glass jaw |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “glass jaw” in English
Rare enough to double-check
glass jaw is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
glass jaw doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: An allusion to glass being easily breakable. The correct English form is glass jaw, spelled G-L-A-S-S- -J-A-W.
Definition
- 1A fighting vulnerability where one is easily knocked out via a single hard blow to the chin or jaw (due to lack of conditioning, insufficient training, or damage from past cerebral concussions).
- 2A vulnerability of that sort; a weak spot.
Recorded use
Wiktionary examplesThese source excerpts show how glass jaw appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
"How was I to know that big ape had a glass jaw?"
Early in Ali's career, experts believed he had what's called a glass jaw—that he would fall after the first big punch. He was now proving that he could take a punch, but each punch chipped away at his health.
Etymology
An allusion to glass being easily breakable.
Synonyms
Antonyms
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.