Real Dictionary

skirt
countable noun: A skirt is a piece of clothing that fastens at the waist and hangs down around the legs.
verb: If you skirt a problem or question, you avoid dealing with it.
verb: If you skirt something, you go around the edge of it.
verb: Something that skirts an area is situated around the edge of it.

skirt in American English
that part of a dress, coat, robe, etc. that hangs below the waist
intransitive verb: to be or lie on or along the edge of something
noun: the part of a gown, dress, slip, or coat that extends downward from the waist
transitive verb: to lie on or along the border of

skirt in Automotive Engineering
noun: The skirt of a vehicle's bodywork is any part that extends downward to cover or protect the wheels or underside of the vehicle.

skirt in British English
noun: a garment hanging from the waist, worn chiefly by women and girls