defect

noun

1
a mark or flaw that spoils the appearance of something (especially on a person's body)
a facial blemish
2
a failing or deficiency
that interpretation is an unfortunate defect of our lack of information
3
an imperfection in a bodily system
visual defects
this device permits detection of defects in the lungs
4
an imperfection in an object or machine
a flaw caused the crystal to shatter
if there are any defects you should send it back to the manufacturer

1
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

Also useful for “defect”:Unscrambler— Rearrange the letters in “defect”