What is the meaning of ground?

noun

• The solid part of the earth's surface.
  • usage: "the plane turned away from the sea and moved back over land"; "the earth shook for several minutes"; "he dropped the logs on the ground"
  • synonyms: land, dry land, earth, solid ground, terra firma
• A rational motive for a belief or action.
  • usage: "the reason that war was declared"; "the grounds for their declaration"
  • synonyms: reason
• The loose soft material that makes up a large part of the land surface.
  • usage: "they dug into the earth outside the church"
  • synonyms: earth
• A relation that provides the foundation for something.
  • usage: "they were on a friendly footing"; "he worked on an interim basis"
  • synonyms: footing, basis
• A position to be won or defended in battle (or as if in battle. )
  • usage: "they gained ground step by step"; "they fought to regain the lost ground"
• The part of a scene (or picture) that lies behind objects in the foreground.
  • usage: "he posed her against a background of rolling hills"
  • synonyms: background
• Material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use. )
  • usage: "the land had never been plowed"; "good agricultural soil"
  • synonyms: land, soil
• A relatively homogeneous percept extending back of the figure on which attention is focused.
• A connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage.
  • synonyms: earth
• Art) the surface (as a wall or canvas) prepared to take the paint for a painting. (
• The first or preliminary coat of paint or size applied to a surface.
  • synonyms: flat coat, primer, priming, primer coat, priming coat, undercoat

verb

• Press or grind with a crushing noise.
  • synonyms: crunch, cranch, craunch, grind
• Make a grating or grinding sound by rubbing together.
  • usage: "grate one's teeth in anger"
  • synonyms: grate, grind
• Work hard.
  • usage: "She was digging away at her math homework"; "Lexicographers drudge all day long"
  • synonyms: labor, labour, toil, fag, travail, grind, drudge, dig, moil
• Dance by rotating the pelvis in an erotically suggestive way, often while in contact with one's partner such that the dancers' legs are interlaced.
  • synonyms: grind
• Reduce to small pieces or particles by pounding or abrading.
  • usage: "grind the spices in a mortar"; "mash the garlic"
  • synonyms: grind, mash, crunch, bray, comminute
• Created by grinding.
  • usage: "grind designs into the glass bowl"
  • synonyms: grind
• Shape or form by grinding.
  • usage: "grind lenses for glasses and cameras"
  • synonyms: grind
• Fix firmly and stably.
  • usage: "anchor the lamppost in concrete"
  • synonyms: anchor
• Confine or restrict to the ground.
  • usage: "After the accident, they grounded the plane and the pilot"
• Place or put on the ground.
• Instruct someone in the fundamentals of a subject.
• Bring to the ground.
  • usage: "the storm grounded the ship"
  • synonyms: strand, run aground
• Hit or reach the ground.
  • synonyms: run aground
• Throw to the ground in order to stop play and avoid being tackled behind the line of scrimmage.
• Hit a groundball.
  • usage: "he grounded to the second baseman"
• Hit onto the ground.
• Cover with a primer; apply a primer to.
  • synonyms: prime, undercoat
• Connect to a ground.
  • usage: "ground the electrical connections for safety reasons"
• Use as a basis for; found on.
  • usage: "base a claim on some observation"
  • synonyms: establish, base, found