The word "dive" can be used as a verb (an action word) in a sentence like, "I dive three times every morning before I swim my laps." Or, the word "dive" can be used as a noun (a thing) in a sentence like, "My dive was scored lower than yours." Actually, the word "dive" could even be used as an adjective (a word that describes a noun) in a sentence like, "My dive gear is not in the car yet."
The answer is: It depends on how the word is being USED in the sentence.
Diving is the present participle of the verb dive.
The part of speech for this particular word is a noun.
The part of speech that the word my is used as is an adjective.
Dived is the past tense of dive. Dove is also acceptable.
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 part of speech for the word civilian is English grammar.
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.