How to pronounce flaw

1a : a defect in physical structure or form a diamond with a flaw. b : an imperfection or weakness and especially one that detracts from the whole or hinders effectiveness vanity was the flaw in his character a flaw in the book’s plot.

When the T and D sounds come between two other consonant sounds, many Americans will drop them. But when we add the -ly ending, it now comes between two consonants. You’ll hear a lot of native speakers say ‘exactly‘, with no T sound. Exactly, exactly.