What is the meaning of watch?

noun

• A small portable timepiece.
  • synonyms: ticker
• A period of time (4 or 2 hours) during which some of a ship's crew are on duty.
• A purposeful surveillance to guard or observe.
  • synonyms: vigil
• The period during which someone (especially a guard) is on duty.
• A person employed to keep watch for some anticipated event.
  • synonyms: lookout, lookout man, sentinel, sentry, spotter, scout, picket
• The rite of staying awake for devotional purposes (especially on the eve of a religious festival.
  • synonyms: vigil

verb

• Look attentively.
  • usage: "watch a basketball game"
• Follow with the eyes or the mind.
  • usage: "Keep an eye on the baby, please"; "The world is watching Sarajevo"; "She followed the men with the binoculars"
  • synonyms: observe, follow, watch over, keep an eye on
• See or watch.
  • usage: "view a show on television"; "This program will be seen all over the world"; "view an exhibition"; "Catch a show on Broadway"; "see a movie"
  • synonyms: view, see, catch, take in
• Observe with attention.
  • usage: "They watched as the murderer was executed"
  • synonyms: look on
• Be vigilant, be on the lookout or be careful.
  • usage: "Watch out for pickpockets"
  • synonyms: look out, watch out
• Observe or determine by looking.
  • usage: "Watch how the dog chases the cats away"
• Find out, learn, or determine with certainty, usually by making an inquiry or other effort.
  • usage: "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time"
  • synonyms: determine, check, find out, see, ascertain, learn