Meaning

• To call to arms for defense

• 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 keep in excitement; to disturb.

Meaning

• Having an alarm fitted.

  "This door is alarmed."

• Worried; anxious; panicky.

  "I'm extremely alarmed about the army outside my house."