desert (a cause, a country or an army), often in order to join the opposing cause, country, or army
a mark or flaw that spoils the appearance of something (especially on a person's body)
an imperfection in an object or machine
a failing or deficiency
an imperfection in a bodily system
an ideal instance; a perfect embodiment of a concept
the state of being without a flaw or defect
the act of making something perfect