A SWAT team
A person or group of people who guard.
A portable or wearable timepiece.
The act of guarding and observing someone or something.
A period of wakefulness between the two sleeps of a biphasic sleep pattern (the dead sleep or first sleep and morning sleep or second sleep): the first waking.
The post or office of a watchman; also, the place where a watchman is posted, or where a guard is kept.
A particular time period when guarding is kept.
A period of time on duty, usually four hours in length; the officers and crew who tend the working of a vessel during the same watch. (FM 55–501).
The act of seeing, or viewing, for a period of time.
A group of sailors and officers aboard a ship or shore station with a common period of duty: starboard watch, port watch.
To mind, attend, or guard.
To be wary or cautious of.
To serve the purpose of a watchman by floating properly in its place.
To be vigilant or on one's guard.
To look at, see, or view for a period of time.
To remain awake with a sick or dying person; to maintain a vigil.
To observe over a period of time; to notice or pay attention.
To act as a lookout.
To attend to dangers to or regarding.