Search Dictionary
Definition of bug

bug

/bʌɡ/
bug

Plural:bugs
•
Adjective:buggy
•
Past Simple:bugged
•
Past Participle:bugged
•
Present Participle:bugging
JUMP TO:

bug Lexical Profile

bug Game Scores & Validity

• noun

1

A small terrestrial invertebrate, typically an insect, spider, or centipede, especially one that crawls or flies.

Example

"We spent the afternoon looking under rocks to see what kinds of bugs lived in the garden."


2

An unexpected error, flaw, or fault in a computer program or system that prevents it from functioning correctly.

Example

"The developers stayed late to fix a critical bug that was crashing the application upon startup."


3

A concealed miniature microphone used for covert eavesdropping or surveillance.

Example

"The intelligence agents planted a bug in the diplomat's office to monitor his private conversations."

Synonyms
View all synonyms for bug

• verb

1

To annoy, bother, or irritate someone persistently.

Example

"Please stop tapping your pen on the desk; it is really beginning to bug me."


2

To secretly install a concealed miniature microphone in a room, vehicle, or device to monitor conversations.

Example

"The detectives secured a warrant to bug the suspect's vehicle as part of an ongoing investigation."


3

To bulge or protrude outward (especially of the eyes in response to surprise or fear).

Example

"His eyes bugged out in disbelief when he saw the final score of the championship game."

Synonyms
View all synonyms for bug
Antonyms
View all antonyms for bug

Word Nuance & Usage

In scientific entomology, 'bug' strictly refers only to insects of the order Hemiptera (which possess piercing and sucking mouthparts), whereas in everyday usage it broadly encompasses any insect, spider, or small crawling invertebrate.

• Rhymes for bug

Word Origin & Etymology

Derived from Middle English 'bugge' (meaning a hobgoblin, scarecrow, or terrifying thing). It was later applied to creeping insects due to their unsettling nature, and eventually expanded to mean mechanical faults and listening devices in the 20th century.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Bug. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/bug
Wordmom is your complete guide to the English language. Whether you're looking up a definition, searching for the perfect synonym, or unscrambling letters for a word game, our comprehensive suite of tools is designed to help you find the right word, every time.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE®, Words With Friends®, Wordle®, and related game titles or tournament codes are registered trademarks of their respective owners (including Hasbro, Mattel, Zynga, The New York Times, NASPA, and WESPA). Wordmom is an independent reference utility for educational and entertainment purposes, not affiliated with, sponsored, or endorsed by these entities. All game names are referenced strictly under nominative fair use for compatibility.