What is the meaning of scrap?

noun

• A small fragment of something broken off from the whole.
  • usage: "a bit of rock caught him in the eye"
  • synonyms: bit, chip, flake, fleck
• Worthless material that is to be disposed of.
  • synonyms: rubbish, trash
• A small piece of something that is left over after the rest has been used.
  • usage: "she jotted it on a scrap of paper"; "there was not a scrap left"
• The act of fighting; any contest or struggle.
  • usage: "a fight broke out at the hockey game"; "there was fighting in the streets"; "the unhappy couple got into a terrible scrap"
  • synonyms: fight, fighting, combat

verb

• Dispose of (something useless or old. )
  • usage: "trash these old chairs"; "junk an old car"; "scrap your old computer"
  • synonyms: trash, junk
• Have a disagreement over something.
  • usage: "We quarreled over the question as to who discovered America"; "These two fellows are always scrapping over something"
  • synonyms: quarrel, dispute, argufy, altercate
• Make into scrap or refuse.
  • usage: "scrap the old airplane and sell the parts"