Longman Dictionary of Contemporary English homepage

Topic: INSECTS

Date: 1600-1700
Origin: Perhaps from bug 'evil spirit, scarecrow' (14-18 centuries)

bug

1 noun
     
bug1 [countable]
1 informal an illness that people catch very easily from each other but is not very serious
catch/pick up/get a bug
I picked up a bug last weekend.
There's a nasty bug going round (=which a lot of people have caught).
tummy/stomach bug (=illness affecting your stomach)
He's off work with a stomach bug.
a 24-hour flu bug
2 especially American EnglishHBI a small insect
3TD a fault in the system of instructions that operates a computer:
a bug in the software
debug
4 a small piece of electronic equipment for listening secretly to other people's conversations
5 informal a sudden strong interest in doing something
the travel/sailing etc bug
She's got the travel bug.
I had one flying lesson and immediately caught the bug (=became very interested in flying).
WORD FOCUS: computer WORD FOCUS: computer
people who work with computers: user, programmer, web designer, IT person, software engineer, (systems) analyst, administrator, webmaster, helpdesk, techie informal, geek disapproving informal

someone who tries to break into a computer system: hacker, cracker

things you do with your computer: start up/power up your computer
open
a file or document
enter
information
click on
an icon
cut and paste
pieces of text
copy
files or programs
scroll up and down
the page
delete
things you do not want
download
files or pictures from the Internet
burn
CDs or DVDs
close
a file or document
save
your work
shut down
your computer

computer problems: bug, virus, error, corrupted file/data, crash, worm
computer

See also
computer
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