ground

noun

1. The surface of a planet (such as the earth or Mars)
2. An area used for a particular purpose

   "a grassy picnic ground"

3. The area around and belonging to a house or other building

   "We toured the grounds of the estate."

4. An area of knowledge or special interest

   "He covered a lot of ground in his lecture."

5. An area to be won or defended in or as if in battle see also proving ground
6. Soil, earth

   "… the nutrient-rich soil that lies deep in the ground."

7. A special soil
8. The bottom of a body of water

   "The boat struck ground."

9. A basis for belief, action, or argument

   "ground for complaint"

10. An object (such as one made of a wire or metal) that makes an electrical connection with the earth
11. A large conducting body (such as the earth) used as a common return for an electric circuit and as an arbitrary zero of potential
12. Electric connection with a ground
13. A surrounding area background

    "wallpaper with black diamonds on a white ground"

14. Material that serves as a substratum
15. A football offense utilizing primarily running plays
16. the surface of a planet (such as the earth or Mars); especially : the surface of the earth or a particular part of it sometimes as contrasted with the air or sea —often used before another noun
17. an area used for a particular purpose
18. the area around and belonging to a house or other building

verb

1. To provide a reason or justification for

   "our fears about technological change may be well grounded"

2. To furnish with a foundation of knowledge base

   "an understanding … that is grounded in fact"

3. To cause to run aground
4. To bring to or place on the ground
5. To restrict to the ground

   "ground a pilot"

6. To prohibit from taking part in some usual activities

   "grounded her for a week"

7. To connect electrically with a ground
8. To throw (a football) intentionally to the ground to avoid being tackled for a loss
9. To run aground

   "The ship grounded on a mud bank."

10. To hit a grounder

    "grounded back to the pitcher"

11. To have a ground or basis rely

adjective

1. Reduced to small pieces or a powder by a grinding process

   "ground beef"

verb

1. To reduce to powder or small fragments by friction (as in a mill or with the teeth)

   "grind the coffee beans"

2. To wear down, polish, or sharpen by friction

   "grind an ax"

3. Oppress, harass

   "tyrants who grind their subjects"

4. To weaken or destroy gradually
5. To press together with a rotating motion

   "grind the teeth"

6. To rub or press harshly

   "ground the cigarette out"

7. To operate or produce by turning a crank

   "grind a hand organ"

8. To perform the operation of grinding
9. To become pulverized, polished, or sharpened by friction
10. To move with difficulty or friction especially so as to make a grating noise

    "gears grinding"

11. Drudge
12. To rotate the hips in an erotic manner

noun

1. A batted baseball that bounds or rolls along the ground

noun

1. A short bass passage continually repeated below constantly changing melody and harmony

noun

1. Any of a large cosmopolitan family (Carabidae) of soil-inhabiting usually carnivorous often shiny black or metallic beetles commonly having fused elytra

noun

1. Any of various chiefly New World herbs (genus Physalis) of the nightshade family with pulpy fruits in papery husks

noun

1. A waterproof sheet placed on the ground for protection (as of a sleeping bag) against soil moisture