To forbid (an aircraft or individual) to fly, usually for a relatively short time.

1. A conducting path, intentional or accidental, between an electric circuit or equipment and the earth, or some conducting body serving in place of the earth. Abbreviated gnd. Also known as earth (British usage); earth connection.

2. To connect electrical equipment to the earth or to some conducting body which serves in place of the earth.

1. Any rock or rock material.

2. A mineralized deposit.

3. Rock in which a mineral deposit occurs.

To touch bottom or run aground; in a serious grounding, the vessel is said to strand.