Definitions of gall:

• noun:   abnormal swelling of plant tissue caused by insects or microorganisms or injury
• noun:   a skin sore caused by chafing
• noun:   the trait of being rude and impertinent; inclined to take liberties
• noun:   a digestive juice secreted by the liver and stored in the gallbladder; aids in the digestion of fats
• noun:   an open sore on the back of a horse caused by ill-fitting or badly adjusted saddle
• noun:   a feeling of deep and bitter anger and ill-will
• verb:   irritate or vex

  Example: "It galls me that we lost the suit"

• verb:   become or make sore by or as if by rubbing
• name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #4938)