Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “bug”

See all translations

bug

noun  /bʌɡ/ us  

bug noun (INSECT)

[C] an insect: Some tiny white bugs had eaten the leaves of my house plants. [C] A bug is also a small organism that causes an illness: The flu bug is going around, and almost everyone is sick.

bug noun (FAULT)

[C] a mistake or problem in the way something works: He said they had eliminated all the bugs in the software, and we hoped this was true.

bug noun (DEVICE)

[C] a small device that is easily hidden, used to record people’s conversations without their knowledge

bug noun (ENTHUSIASM)

[U] infml a strong enthusiasm for something: When I was about 17, I was bitten by the acting bug and began to try out for parts.

bug

verb [T]  /bʌɡ/ (-gg-) us  

bug verb [T] (ANNOY)

infml to annoy someone repeatedly: My lawyer is bugging me for stuff I just don’t have.

bug verb [T] (HIDE DEVICE)

to hide a listening device in something: She suspected that her phone had been bugged.
(Definition of bug from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of bug?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “bug”

Definitions of “bug” in other dictionaries

Word of the Day

illusion

an idea or belief that is not true

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More