to move in a twisting or contorted motion, (especially when struggling); "The prisoner writhed in discomfort"; "The child tried to wriggle free from his aunt's embrace"
(often followed by `for') in exchange or in reciprocation; "gave up our seats on the plane and in return received several hundred dollars and seats on the next plane out"; "we get many benefits in return for our taxes"
a failing or deficiency; "that interpretation is an unfortunate defect of our lack of information"
an imperfection in a bodily system; "visual defects"; "this device permits detection of defects in the lungs"
an imperfection in a device or machine; "if there are any defects you should send it back to the manufacturer"
desert (a cause, a country or an army), often in order to join the opposing cause, country, or army; "If soldiers deserted Hitler's army, they were shot"