verb

• (transitive) To cut or score; to wound superficially.
  "We have scotched the snake, not killed it."
• (transitive) To prevent (something) from being successful.
  "The rain scotched his plans of going to the beach."
• (transitive) To debunk or discredit an idea or rumor.
  "The prime minister scotched rumors of his resignation."
• (transitive) To block a wheel or other round object.
  "The workers stopped the rig on an incline and scotched the wheels."

verb

• (transitive, Australian rhyming slang) To rape.

name

• (dated) The Scots language.
  "But Rob was just saying what a shame it was that folk should be shamed nowadays to speak Scotch – or they called it Scots if they did, the split-tongued sourocks!"
• (dated) The Scottish dialect of English.
• (dated) The people of Scotland.
  "The Scotch are a hardy bunch."
• (chess, informal) The opening 1. e4 e5 2. Nf3 Nc6 3. d4.
  "Karpov played the Scotch against Anand."

noun

• (uncountable) Whisky distilled in Scotland, especially from malted barley.
  "Paul has drunk a lot of Scotch."
• (countable) Any variety of Scotch.
  "My favorite Scotches are Glenlivet and Laphroaig."
• (countable) A glass of Scotch.
  "Gimme a Scotch."