Synonyms for Wart:

n.

abscess, boil, athlete's foot, black eye, bedsore, blackhead. blemish (noun)
mark, scar, speck, scrape, scab, damage, fracture, spot, deformity, score, eyesore, defacement, fault, spoilage, hack, lesion, imperfection, stain, slit, hurt, rift, check, stigma, scratch, pockmark, nick, kink, notch, flaw, fleck, blister, freckle, sore, scuff, tarnish, dot, impurity, blemish, gash, mar, disfigurement, blotch, defect, distortion, brand, drawback, weal, abrasion, discoloration, blot, splotch, chip.
bulge (noun)
projection.
imperfection (noun)
flaw.
protuberance (noun)
bulge, tumor, growth, mole, wen, projection.
small growth or lump on the skin (noun)
blemish, spot, mole, verruca, growth.
wart (noun)
verruca.

Other synonyms:

swelling
bulge.
Other relevant words:
growth, verruca, mole, tumor, boil, wen, blackhead, bulge.