ground [ˈgraʊnd]

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¹ ground noun

• the surface of the earth
• the soil that is on or under the surface of the earth
• an area of land

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² ground verb

• to provide a basis or reason for (something)—usually used as (be) grounded —often + in
• to cause a ship or boat to hit the ground below the water so that it cannot move
• to prevent (an aircraft or a pilot) from flying

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³ ground