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Definition of housefly
housefly
/ˈhaʊs.flaɪ/
house · fly
Plural:houseflies
housefly Lexical Profile
CEFR
A2
Grade
3
Tier
2
Usage
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• noun
1
A common, ubiquitous flying insect (Musca domestica) of the order Diptera that frequently inhabits human dwellings and is a known mechanical vector for various diseases.
Example
"The annoyance of a single housefly buzzing around the kitchen was enough to distract him from his cooking."
Synonyms
View all synonyms for houseflyWord Origin & Etymology
From Middle English 'hous-flye', formed as a compound of 'house' and 'fly', directly referencing the insect's frequent presence in human dwellings.
Cite this Entry
Wordmom. (2026). Definition of Housefly. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/housefly