Bug1. (n.) A bugbear; anything which terrifies.
2. (n.) A general name applied to various insects belonging to the Hemiptera; as, the squash bug; the chinch bug, etc.
3. (n.) An insect of the genus Cimex, especially the bedbug (C. lectularius). See Bedbug.
4. (n.) One of various species of Coleoptera; as, the ladybug; potato bug, etc.; loosely, any beetle.
5. (n.) One of certain kinds of Crustacea; as, the sow bug; pill bug; bait bug; salve bug, etc.
Thesaurus Entries
ALGOL, COBOL, FORTRAN, Mumbo Jumbo, abrade, addict, addle, addle the wits, adenovirus, aerobe, aerobic bacteria, aficionado, aggravate, agitate, alphabetic data, alphanumeric code, amoeba, anaerobe, anaerobic bacteria, angular data, annoy, apply pressure, arachnid, arthropod, assembler, attend, attend to, auscultate, bacillus, bacteria, bacterium, badger, bag, bait, ball up, balloon, be all ears, be at, becloud, bedazzle, bedevil, beetle, befuddle, belly, belly out, bend an ear, beset, besiege, bewilder, bigot, bilge, billow, binary digit, binary scale, binary system, bit, blandish, blemish, bogey, bogeyman, boggart, bogle, booger, boogerman, boogeyman, bother, bouge, bristle, brown off, buff, bugaboo, bugbear, bugger, bulge, bullyrag, burn up, buttonhole, byte, cajole, carp at, case, catch, caterpillar, centipede, chafe, chilopod, chivy, cloud, coax, coccus, cock the ears, collector, command pulses, commands, compiler, computer code, computer language, computer program, confuse, control signals, controlled quantity, convulse, correcting signals, crack, crank, craze, crazy fancy, daddy longlegs, data, daze, dazzle, defect, defection, deficiency, demon, devil, devotee, dilate, diplopod, discombobulate, discomfit, discompose, disconcert, disease-producing microorganism, disorganize, disorient, distemper, distend, distract, disturb, dog, drawback, dun, eager beaver, eavesdrop, echovirus, embarrass, embroil, energumen, entangle, enterovirus, enthusiasm, enthusiast, error, error signals, examine by ear, exasperate, exercise, exert pressure, faddist, failing, failure, fan, fanatic, fanatico, fascination, fash, fault, faute, fee-faw-fum, feedback pulses, feedback signals, fiend, film data, filterable virus, flaw, flummox, flurry, fluster, flutter, fly, fog, foible, frailty, freak, fret, fret at, fuddle, fungus, furor, furore, fuss, fuss at, gall, germ, get, give attention, give audience to, give ear, goggle, gram-negative bacteria, gram-positive bacteria, great one for, gripe, harass, hark, harry, harvestman, hassle, hear, hear out, hearken, heckle, hector, heed, henpeck, hexadecimal system, hexapod, hobbyist, hole, hound, imperfection, importune, inadequacy, infatuate, infatuation, infirmity, information, input data, input quantity, insect, instructions, intercept, irk, kink, larva, lend an ear, listen, listen at, listen in, listen to, little problem, lunatic fringe, machine language, maggot, make a reconnaissance, mania, maniac, manic-depressive psychosis, maze, message, microbe, microorganism, microphone, miff, mike, millepede, millipede, mist, mite, mix up, moider, mold, molest