Wart

n. small lump of hardened skin that usually grows on the hands or feet and is caused by a virus; similar growth on the genitals

A wart is generally a small, rough tumor, typically on hands and feet, that can resemble a cauliflower or a solid blister. Warts are common, and are caused by a viral infection, specifically by the human papillomavirus (HPV) and are contagious when in contact with the skin of another. It is also possible to get warts from using towels or other objects. They typically disappear after a few months but can last for years and can reoccur. A few papilloma viruses are known to cause cervical cancer.
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Wart verruca ; a hyperplastic epidermal lesion with a horny surface, caused by a human papillomavirus; also loosely applied to any of various [more]Wart - Community and Resources

Noun
1. any small rounded protuberance (as on certain plants or animals)
(hypernym) bulge, bump, hump, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, extrusion, excrescence
(classification) animal, animate being, beast, brute, creature, fauna
2. (pathology) a firm abnormal elevated blemish on the skin; caused by a virus
(synonym) verruca
(hypernym) blemish, defect, mar
(hyponym) common wart
(classification) pathology

n. guardian, guard, overseer, watchman, one who performs a lookout

v. be, exist

v. wait, remain in a location until a specific occurrence, staying where one is, stay, await; look after, watch after, supervise over, tend; service, provide assistance, repair