It depends on how you use it. It can be either a noun or a verb.
Noun: A blast of cold air met her as she opened the door.
Verb: He blasts a horn in his children's ear to wake them.
Gust is another word for a sudden strong blast of wind.
The word "density" is a noun. It refers to the degree of compactness of a substance.
The word nanosecond is a noun. The plural form is nanoseconds.
The word "motionless" is an adjective. It describes something that is not moving or lacking in motion.
The word moving is a verb. It is the present participle of the verb move.
The part of speech that the word my is used as is an adjective.
The part of speech for this particular word is a noun.
Blast can be a noun or a verb: The blast left a crater fifty feet across. The thieves planned to blast through the side of the building to gain access to the vault.
The part of speech for the word civilian is English grammar.
The part of speech for the word diplomacy is a noun.
H is a letter, not a word. To be a part of speech, it needs to be a word.
The part of speech for the word "boulevard" is a noun.
The word speech is a noun.
The part of speech for this particular word is a noun.
The word speech is a noun.
The word speech is a noun.
The word speech is a noun.