Dictionary definition · bug
noun
- general term for any insect or similar creeping or crawling invertebrate
- a fault or defect in a computer program, system, or machine
- a small hidden microphone; for listening secretly
- insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis
- a minute life form (especially a disease-causing bacterium); the term is not in technical use
verb
- annoy persistently"The children teased the boy because of his stammer"
- tap a telephone or telegraph wire to get information"The FBI was tapping the phone line of the suspected spy"
Source: Open English WordNet (CC BY 4.0).