- watch [wäch, wôch]n.[ME wacche < OE wæcce < base of wacian: see WAKE1]1. the act or fact of keeping awake, esp. of keeping awake and alert, in order to look after, protect, or guard2.a) any of the several periods into which the night was divided in ancient timesb) a part of the night [the still watches of the night]3.a) close observation for a time, in order to see or find out somethingb) the act or process of vigilant, careful guarding [to keep watch over a house]4. a person or group on duty, esp. at night, to protect or guard; lookout or guard5.a) the period of duty of a guardb) the post of a guard6. a small timepiece designed to be carried in the pocket or worn on the wrist, as a pendant, etc.7. Obs.a) a vigil; wakeb) vigilance8. Obs. a candle marked off into sections, used for keeping time9. Obs. a watchman's cry10. Naut.a) any of the periods of duty (five of four hours, and two of two hours) into which the day is divided on shipboard, so that the work is shared among alternating shifts of the crewb) the part of the crew on duty during any such periodc) a ship's chronometervi.1. to stay awake, esp. at night, so as to pray and meditate2. to stay awake and alert at night; care for or guard something at night3. to be on the alert; be on the lookout4. to look or observe, esp. attentively5. to be looking or waiting attentively: with for [to watch for one's chance]vt.1. to guard2. to keep looking at; observe carefully and constantly3. to view mentally; keep informed about4. to be on the alert for; wait for and look for [to watch one's chance]5. to keep watch over or tend (a flock, a baby, etc.)——————on the watchwatching; on the lookout, as for some thing or person expected——————☆ watch oneselfto be careful, cautious, or discreet——————☆ watch outto be alert and on one's guard; be careful——————watch overto protect from harm or danger
English World dictionary. V. Neufeldt. 2014.