bug Definition in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Definition of “bug” - English Dictionary

Definition of "bug" - American English Dictionary

See all translations

bugnoun

 us   /bʌɡ/

bug noun (INSECT)

[C] an ​insect: Some ​tinywhite bugs had ​eaten the ​leaves of my ​houseplants. [C] A bug is also a ​smallorganism 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 ​smalldevice that is ​easilyhidden, used to ​record people’s ​conversations without ​theirknowledge

bug noun (ENTHUSIASM)

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

bugverb [T]

 us   /bʌɡ/ (-gg-)

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 ​listeningdevice in something: She ​suspected that her ​phone had been bugged.
(Definition of bug from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "bug" - British English Dictionary

See all translations

bugnoun

uk   us   /bʌɡ/

bug noun (INSECT)

B1 [C] a very ​smallinsect
More examples

bug noun (ILLNESS)

B2 [C] informal a ​bacteria or a ​viruscausing an ​illness that is usually not ​serious: I had a tummy/​stomach bug last ​week. There's a bug going around (= an ​illness that many ​people are getting).
More examples

bug noun (COMPUTER PROBLEM)

B2 [C] a ​mistake or ​problem in a ​computerprogram: A bug ​caused the company's ​computersystem to ​crash.
More examples

bug noun (DEVICE)

[C] a very ​smalldevicefixed on to a ​phone or ​hidden in a ​room, that ​allows you to ​listen to what ​people are saying without them ​knowing

bug noun (ENTHUSIASM)

[S] informal a very ​strongenthusiasm for something: He's been ​bitten by the ​sailing bug.

bugverb [T]

uk   us   /bʌɡ/ (-gg-)

bug verb [T] (ANNOY)

informal to ​annoy or ​worry someone: He's been bugging me all ​morning.

bug verb [T] (HIDE DEVICE)

to ​place or ​hide a ​listeningdevice inside something: often passive She ​suspected that her ​phone had been bugged.
(Definition of bug from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "bug" - Business English Dictionary

See all translations

bugnoun [C]

uk   us   /bʌɡ/ IT
a mistake or problem in a ​computerprogram: The latest ​update fixes several known bugs in the ​script. Please ​submit all bug ​reports to the IT ​department.
(Definition of bug from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of bug?
Add Cambridge dictionaries to your browser to your website
Word of the Day

chestnut

a large tree with leaves divided into five parts and large round nuts that can be eaten

Word of the Day

In London but at the station: prepositions for talking about travel
In London but at the station: prepositions for talking about travel
by Liz Walter,
September 02, 2015
Several readers have asked for information on prepositions, so I will start with a blog post that looks at an area where they are really important: travel. The first thing to remember is that we use to (and not ‘in’) after the verb go: We are going to London. I went to

Read More 

parklet noun
parklet noun
August 31, 2015
a public outdoor space that may be associated with a local business but where anyone can sit Pop-up cafes in NY are what’s actually called parklets in many other places around the country.

Read More