bug

nouns

general term for any insect or similar creeping or crawling invertebrate
bug
is derived from
buggy
is a type of (narrower)
small air-breathing arthropod
insect
a fault or defect in a computer program, system, or machine
bug, glitch
a small hidden microphone; for listening secretly
bug
is a type of (narrower)
device for converting sound waves into electrical energy
microphone, mike
insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis
bug, hemipteran, hemipteron, hemipterous insect
a minute life form (especially a disease-causing bacterium); the term is not in technical use
bug, germ, microbe

verbs

annoy persistently
"The children teased the boy because of his stammer"
badger, beleaguer, bug, pester, tease
tap a telephone or telegraph wire to get information
"The FBI was tapping the phone line of the suspected spy"; "Is this hotel room bugged?"
bug, intercept, tap, wiretap