The word alarm is a verb.
It can also be a noun as in a sound to alert you to something.
Allegory is a noun.
Exponential is an adjective.
Overcome is a verb.
A verb, more particularly a "linking verb."
The word foil is a noun. It can also be a verb meaning to prevent someone from accomplishing something.
Similar to "wow!", "yikes!" is an interjection.
Evacuate is used most often a verb. "Workers evacuated the plant when the alarm sounded".
"Dreadful" is an adjective. It is commonly used to describe something causing great fear, awe, or alarm.
the beeper or the alarm itself
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
A thyristor is a part of a alarm circuit you use it so the alarm stays on
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.