to keep one's eyes fixed on (something or somebody)

to look at (an event or moving scene)

to take an interest in the progress of (something or somebody)

She watched his rise to stardom with amazement

to keep (somebody) under surveillance or protective guard

to be careful or cautious about (something)

You need to watch your speed here

to be closely observant of an event or action; to look attentively

(also + over) to protect or take charge

(+ for) to be attentive or vigilant

Police surrounded the house, watching for any movement

archaic to keep vigil as an act of devotion

And he cometh unto his disciples, and findeth them asleep, and saith unto Peter, ‘What, could ye not watch with me one hour?’ — Bible

a small timepiece worn on the wrist or carried in the pocket

the act or an instance of watching keeping awake or alert to guard, protect, or attend

close observation; surveillance

a state of alert and continuous attention; a lookout

on the watch

a period of keeping guard

somebody who watches; a lookout or watchman

a body of sentinels or watchmen; specif those formerly assigned to patrol the streets of a town at night, announce the hours, and act as police

(usu in pl) a wakeful interval during the night