Definitions
1.nounAnything that protects or defends; defense; shelter; protection.
2.nounA shape like that of a shield; usually, an inverted triangle with sides that curve inward to form a pointed bottom, commonly used for police identifications and company logos.
3.nounA large expanse of exposed stable Precambrian rock.
4.nounA place with a toilet seat: an outhouse; a lavatory.
5.nounParts at the front and back of a vehicle which are meant to absorb the impact of a collision