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Definition of filefish
filefish
/ˈfaɪl.fɪʃ/
file · fish
Plural:filefishes
filefish Lexical Profile
CEFR
C1
Grade
8
Tier
3
Usage
Rare
Syllables
2
filefish Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
Any of various tropical to subtropical marine fishes of the family Monacanthidae, closely related to triggerfish, characterized by highly compressed bodies, rough sandpaper-like skin, and a prominent erectile dorsal spine.
Example
"While snorkeling over the tropical reef, the marine biologist pointed out a scrawled filefish camouflaged perfectly against the swaying gorgonians."
Synonyms
View all synonyms for filefish• Rhymes for filefish
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Word Origin & Etymology
Coined in the mid-17th century from 'file' and 'fish', named for the rough, sandpaper-like texture of its skin, which was historically dried and used as an abrasive or to strike matches.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Filefish. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/filefish