It is an adjective. It describes a noun. For example, "She is a crazy girl". Crazy describes the girl.
Noun
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.
The part of speech for the word diplomacy is a noun.
The part of speech for the word civilian is English grammar.
H is a letter, not a word. To be a part of speech, it needs to be a word.
The word speech is a noun.
Crazy is an adjective (insane, foolish, or illogical).There is a related abstract noun, "craziness."
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.
What "part of speech" is the word "said?"