Definition Of bug
a miniature microphone, typically concealed in a room or telephone, used for surveillance.
That, according to sources, is a strong indication that it was the FBI's bug and they were the ones that put it there in the first place.
a small insect.
I observed small creatures: ants, bugs , moths, worms, all working their ways, digging in and out of the soil.
an error in a computer program or system.
Worse, it is theoretically impossible to determine whether computer systems are free from programming bugs or nefarious code.
an insect of a large order distinguished by having mouthparts that are modified for piercing and sucking.
The insect families that scientists lump together as aphids belong to the huge order of true bugs , which typically deploy sucking mouthparts much like built-in soda straws.
annoy or bother (someone).
a persistent reporter was bugging me
Example Of bug
A bug , a bacterium called Propionobacterium acnes, that lives normally on the skin, can thrive within the blocked pore.
a custom program we used developed a bug
A flagship London heart hospital was forced to close for two weeks after 45 staff and patients became ill with a diarrhoea bug .
A large lantern insect, the mealy fly is a sucking bug .
A school remained closed today after 150 pupils were struck down by a sickness bug .