noun

• (obsolete) A liquid, a fluid.
  "Thus Water also, or any other Liquor, included in a convenient vessel, by being warmed, manifestly expands it self with a very great violence […]"
• (obsolete) A drinkable liquid.
• (UK, cooking) A parsley sauce commonly served with traditional pies and mash.
• (chiefly US, Canada, Australia) Strong alcoholic drink derived from fermentation and distillation; more broadly, any alcoholic drink.
  "Here the proprietor has had the good sense of holding on to the good old fashion of giving his customers their moneyworth of good wines and liquors."

verb

• (intransitive) To drink liquor, usually to excess.
• (transitive) To cause someone to drink liquor, usually to excess.
• (obsolete, transitive) To grease.
  "Liquor fishermen's boots."