n.

1. a small portable timepiece;
   ticker
2. a period of time (4 or 2 hours) during which some of a ship's crew are on duty
3. a purposeful surveillance to guard or observe;
   vigil
4. the period during which someone (especially a guard) is on duty
5. a person employed to watch for something to happen;
   lookout, lookout man, sentinel, sentry, spotter, scout, picket
6. the rite of staying awake for devotional purposes (especially on the eve of a religious festival);
   vigil

v.

1. look attentively
   
   • watch a basketball game
2. follow with the eyes or the mind;
   observe, follow, watch over, keep an eye on
   
   • Keep an eye on the baby, please!
   • The world is watching Sarajevo
   • She followed the men with the binoculars
3. see or watch;
   view, see, catch, take in
   
   • 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
4. observe with attention;
   look on
   
   • They watched as the murderer was executed
5. be vigilant, be on the lookout, be on one's guard, be careful;
   look out, watch out
   
   • Watch out for pickpockets!
6. observe or determine by looking
   
   • Watch how the dog chases the cats away
7. find out, learn, or determine with certainty, usually by making an inquiry or other effort;
   determine, check, find out, see, ascertain, learn
   
   • 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