A mechanical device for awaking people, or rousing their attention.
An instance of an alarm ringing, beeping or clanging, to give a noise signal at a certain time.
A sudden attack; disturbance.
Any sound or information intended to give notice of approaching danger; a warning sound to arouse attention; a warning of danger.
A summons to arms, as on the approach of an enemy.
Sudden surprise with fear or terror excited by apprehension of danger; in the military use, commonly, sudden apprehension of being attacked by surprise.
To give (someone) notice of approaching danger
To rouse to vigilance and action; to put on the alert.
To surprise with apprehension of danger; to fill with anxiety in regard to threatening evil; to excite with sudden fear.
To call to arms for defense
To keep in excitement; to disturb.
A clapper board; a device used in film production, having hinged boards that are brought together with a clap, used to synchronize picture and sound at the start of each take of a motion picture or other video production.
A narrow board, usually thicker at one edge than the other, used as siding for houses and similar structures of frame construction.
Such boards, arranged horizontally and overlapping with thick edge down, collectively, as siding.
To cover with clapboards.