WordNet: defect, fault, flaw

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"

• hypernym imperfection, imperfectness

• hyponym blister

• hyponym bug, glitch

• hyponym hole

defect

• (suomi) vika (synonyymi)

fault

• (englanti) faulty (derivationally related)
• (suomi) vika (synonyymi)

flaw

• (englanti) flaw (derivationally related)
• (suomi) virhe (synonyymi)