Open English Wordnet
Nouns
(n)defect, fault, flawan 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” (n)flawdefect or weakness in a person's character“he had his flaws, but he was great nonetheless” (n)flawan imperfection in a plan or theory or legal document that causes it to fail or that reduces its effectiveness Verbs
(v)flaw, blemishadd a flaw or blemish to; make imperfect or defective