bold and impudent behaviour

the bank had the gall to demand a fee

the contents of the gall bladder; bile (proverbial for its bitterness)

annoyance or resentment

he was filled with gall at the suspected ambitions of his old enemies

a sore on the skin made by chafing

saddle galls

make (someone) feel annoyed or resentful

it galled him to have to sit impotently in silence

make sore by rubbing

the straps that galled their shoulders

an abnormal growth formed in response to the presence of insect larvae, mites, or fungi on plants and trees, especially oaks

a single grub feeds on its gall for two years before emerging

the witch hazel had developed leaf galls