Definitions of shell:

• noun:   the hard largely calcareous covering of a mollusc
• noun:   ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun
• noun:   the housing or outer covering of something
• noun:   a very light narrow racing boat
• noun:   a rigid covering that envelops an object

  Example: "The satellite is covered with a smooth shell of ice"

• noun:   the exterior covering of a bird's egg
• noun:   the hard usually fibrous outer layer of some fruits especially nuts
• noun:   the material that forms the hard outer covering of many animals
• noun:   hard outer covering or case of certain organisms such as arthropods and turtles
• noun:   a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners)
• verb:   look for and collect shells by the seashore
• verb:   hit the pitches of hard and regularly

  Example: "He shelled the pitcher for eight runs in the first inning"

• verb:   fall out of the pod or husk

  Example: "The corn shelled"

• verb:   remove from its shell or outer covering

  Example: "Shell the legumes"

• verb:   use explosives on

  Example: "The enemy has been shelling us all day"

• verb:   remove the husks from
• verb:   come out better in a competition, race, or conflict
• name:  A surname (common: 1 in 20000 families; popularity rank in the U.S.: #2399)