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noun, often attributive \ˈgrau̇nd\

Simple Definition of ground

  • the ground : the surface of the earth

  • : the soil that is on or under the surface of the earth

  • : an area of land

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ground

  1. 1 a :  the bottom of a body of water b plural (1) :  sediment 1 (2) :  ground coffee beans after brewing

  2. 2 a :  a basis for belief, action, or argument <ground for complaint> —often used in plural <sufficient grounds for divorce> b (1) :  a fundamental logical condition (2) :  a basic metaphysical cause

  3. 3 a :  a surrounding area :  background b :  material that serves as a substratum

  4. 4 a :  the surface of the earth b :  an area used for a particular purpose <the parade ground> <fishing grounds> c plural :  the area around and belonging to a house or other building d :  an area to be won or defended in or as if in battle e :  an area of knowledge or special interest <covered a lot of ground in his lecture>

  5. 5 a :  soil, earth b :  a special soil

  6. 6 a :  an object that makes an electrical connection with the earth b :  a large conducting body (as the earth) used as a common return for an electric circuit and as an arbitrary zero of potential c :  electric connection with a ground

  7. 7 :  a football offense utilizing primarily running plays

from the ground up

  1. 1 :  entirely new or afresh

  2. 2 :  from top to bottom :  thoroughly

into the ground

  1. :  beyond what is necessary or tolerable :  to exhaustion <labored an issue into the groundNewsweek>

off the ground

  1. :  in or as if in flight :  off to a good start <the program never got off the ground>

on the ground

  1. :  at the scene of action

to ground

  1. 1 :  into a burrow <the fox went to ground>

  2. 2 :  into hiding <might need to make a run for it and go to ground someplace — Edward Hoagland>

Examples of ground in a sentence

  1. An apple fell to the ground.

  2. Mechanical problems kept the plane on the ground.

  3. They were lying on the ground.

  4. The flight was watched by many observers on the ground.

  5. planting seeds in the ground

  6. She drove a spike into the ground.

  7. They built their house on bare ground.

  8. We realized that we were on hallowed ground.

  9. They built their house on high ground.

  10. Each fall the birds return to their wintering grounds.

Origin and Etymology of ground

Middle English, from Old English grund; akin to Old High German grunt ground

First Known Use: before 12th century




Simple Definition of ground

  • : to provide a basis or reason for (something)

  • : 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ground

  1. transitive verb
  2. 1 a :  to bring to or place on the ground b :  to cause to run aground

  3. 2 a :  to provide a reason or justification for <our fears about technological change may be well grounded — L. K. Williams> b :  to furnish with a foundation of knowledge :  base <an understanding … that is grounded in fact — Michael Kimmelman>

  4. 3 :  to connect electrically with a ground

  5. 4 a :  to restrict to the ground <ground a pilot> b :  to prohibit from taking part in some usual activities <grounded her for a week>

  6. 5 :  to throw (a football) intentionally to the ground to avoid being tackled for a loss

  7. intransitive verb
  8. 1 :  to have a ground or basis :  rely

  9. 2 :  to run aground

  10. 3 :  to hit a grounder <grounded back to the pitcher>

Examples of ground in a sentence

  1. They grounded the ship on a sandbar.

  2. The plane was grounded by mechanical problems.

  3. Bad weather grounded his flight.

  4. a pilot grounded by health problems

13th Century

First Known Use of ground

13th century



Definition of ground

  1. past and past participle of grind

GROUND Defined for Kids



noun \ˈgrau̇nd\

Definition of ground for Students

  1. 1 :  the surface of the earth <Leaves fell to the ground.>

  2. 2 :  2soil 1, earth <The beans themselves popped out of the ground. — Laura Ingalls Wilder, Little House on the Prairie>

  3. 3 :  the bottom of a body of water <The boat struck ground.>

  4. 4 :  an area of land <sacred ground>

  5. 5 :  an area used for some purpose <a hunting ground>

  6. 6 grounds plural :  the land around and belonging to a building <the school grounds>

  7. 7 :  background 1

  8. 8 :  a reason for a belief, action, or argument <What is the ground for your complaint?>

  9. 9 :  an area of knowledge <We covered a lot of ground in class.>

  10. 10 :  a level of achievement or success <The company is losing ground.>

  11. 11 grounds plural :  material in a liquid that settles to the bottom <coffee grounds>




Definition of ground for Students



  1. 1 :  to provide a reason for <The practices are grounded in tradition.>

  2. 2 :  to instruct in basic knowledge or understanding <The students are well grounded in math.>

  3. 3 :  to run or cause to run aground <ground a ship>

  4. 4 :  to connect electrically with the ground

  5. 5 :  to prevent (a plane or pilot) from flying

  6. 6 :  to prohibit from taking part in certain activities as punishment <My parents grounded me for a week.>




Definition of ground for Students

  1. past and past participle of grind

Medical Dictionary


Medical Definition of ground

past and past part of grind

Law Dictionary




Legal Definition of ground

  1. 1 :  the foundation or basis on which knowledge, belief, or conviction rests :  a premise, reason, or collection of data upon which something (as a legal action or argument) relies for validity <sued the city on the ground that the city…had wrongfully released…records — City of Lawton v. Moore, 868 P.2d 690 (1993)> <listed adultery and alcoholism as the grounds for divorce>

  2. 2 :  a piece or parcel of land <the design being to create high ground for use during overflow periods — Bright v. Perkins, 239 S.W.2d 281 (1951)> <a sudden disruption of a piece of ground from one man's land — Porter v. Arkansas Western Gas Co., 482 S.W.2d 598 (1972)>









transitive verb

Legal Definition of ground

  1. :  to furnish a ground for :  set on a basis <that court grounded the disclosure requirement in negligence law — Scott v. Bradford, 606 P.2d 554 (1979)> <an argument grounded on falsehoods>

Seen and Heard

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a very small amount

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