(idiomatic) To be aware or conscious; to look closely or carefully; to use caution. Often used in the imperative.

Used to warn someone of an imminent danger.

plural of night watch

A watch, usually electronic, that displays time in the form of numbers, rather than by a dial and hands.

A watch that displays time by means of a dial and hands, in contradistinction to a digital watch.

US standard spelling of analogue watch.

Alternative spelling of watch cap

A knitted cap, such as the one worn by a seaman when on watch.

plural of pocket watch

A watch carried in the pocket, often with a closing cover and usually attached to a chain.