ground

Forms

1.The surface of the Earth, as opposed to the sky or water or underground.
- Look, I found a ten dollar bill on the ground!
- From the ground, Colombo’s port does not look like much. Those entering it are greeted by wire fences, walls dating back to colonial times and security posts.
- If the afternoon was fine they strolled together in the park, very slowly, and with pauses to draw breath wherever the ground sloped upward. The slightest effort made the patient cough.
2.Terrain.
- As the terrain-following radar scans the ground ahead of the aircraft the actual clearance height is measured by the radio altimeter.
3.Soil, earth.
- The worm crawls through the ground.
4.The bottom of a body of water.

1.To punish, especially a child or teenager, by forcing them to stay at home and/or give up certain privileges.
- My kids are currently grounded from television.
- If you don't clean your room, I'll have no choice but to ground you.
- Eric, you are grounded until further notice for lying to us about where you were last night!
2.To forbid (an aircraft or pilot) to fly.
- Because of the bad weather, all flights were grounded.
3.To give a basic education in a particular subject; to instruct in elements or first principles.
- Jim was grounded in maths.
4.To connect (an electrical conductor or device) to a ground.
- These geomagnetically induced currents (GICs) can become a hazard when they flow through conducting infrastructure, usually entering and exiting networks where equipment is grounded to Earth.

Common· #619

Etymology tree

Proto-Indo-European *gʰrem-der.

Proto-Germanic *grunduz

Old English grund

Middle English ground

English ground