n general term for any insect or similar creeping or crawling invertebrate
n a fault or defect in a computer program, system, or machine
n a small hidden microphone; for listening secretly
n insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis
n a minute life form (especially a disease-causing bacterium); the term is not in technical use
v annoy persistently
v tap a telephone or telegraph wire to get information