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Definition of overfill
overfill
/ˌoʊvərˈfɪl/
o · ver · fill
Plural:overfills
•Adjective:overfull
•Past Simple:overfilled
•Past Participle:overfilled
•Present Participle:overfilling
overfill Lexical Profile
CEFR
B2
Grade
5
Tier
2
Usage
Top 10k
Syllables
3
overfill Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To fill a container, space, or vessel beyond its capacity or to an excessive degree.
Example
"Be careful not to overfill the kettle, or boiling water will spill out of the spout."
Synonyms
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View all antonyms for overfill• noun
1
An excess amount of substance that fills a container beyond its intended capacity, or an instance of filling something too full.
Example
"The automated valve shut off immediately to prevent an accidental overfill of the storage tank."
Synonyms
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View all antonyms for overfill• Rhymes for overfill
• Nearby Words
Word Origin & Etymology
From Old English oferfyllan, formed from the prefix ofer- (over) and fyllan (to fill).
Cite this Entry
Wordmom. (2026). Definition of Overfill. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/overfill