a raised part of the outer skin containing watery liquid

a bubble or raised spot, e.g. in paint or, wallpaper, etc, resembling a blister

a disease of plants marked by large swollen patches on the leaves

any of various structures that bulge out

an aircraft's radar blister

to make or become affected with a blister or blisters

to raise a blister or blisters on (e.g. the skin, paint)

to attack (somebody) harshly