Bug or BUG may refer to: Common uses. A terrestrial arthropod animal, usually with at least six legs. Insect, a six-legged arthropod. Hemiptera, the true bugs. A colloquialism for most minibeasts including arthropods, gastropods and worms. Covert listening device, used in surveillance and espionage. Bug (engineering), a defect in an engineered system. Software bug. Hardware bug. BUG (tag), a computer programming comment tag. Score bug, overlaid display of information in a sports broadcast. Pathogen, colloquially. Arts, entertainment and media. Fictional entities.
https://en.wikipedia.org/wiki/Bug