What is the meaning of counter?

noun

• Table consisting of a horizontal surface over which business is transacted.
• Game equipment (as a piece of wood, plastic, or ivory) used for keeping a count or reserving a space in various card or board games.
• A calculator that keeps a record of the number of times something happens.
  • synonyms: tabulator
• A piece of furniture that stands at the side of a dining room; has shelves and drawers.
  • synonyms: buffet, sideboard
• A person who counts things.
• A quick reply to a question or remark (especially a witty or critical one. )
  • usage: "it brought a sharp rejoinder from the teacher"
  • synonyms: rejoinder, retort, return, riposte, replication, comeback
• Computer science. ( a register whose contents go through a regular series of states (usually states indicating consecutive integers))
• A piece of leather forming the back of a shoe or boot.
  • usage: "a counter may be used to stiffen the material around the heel and to give support to the foot"
  • synonyms: heel counter
• A return punch (especially by a boxer.
  • synonyms: counterpunch, parry

verb

• Speak in response.
  • usage: "He countered with some very persuasive arguments"
• Act in advance of; deal with ahead of time.
  • synonyms: anticipate, foresee, forestall

adjective

• Indicating opposition or resistance.
  • synonyms: antagonistic

adverb

• In the opposite direction.
  • usage: "run counter"