Disappointment is a noun. The suffix "-ment" is used to form nouns, so if you see a word ending in "ment", it is likely to be a noun. For example, "amuse" is a verb, but "amusement" is a noun.
adverb
what part of speech is beneath
i want to know what part of speech is camping
The part of speech is a adjective
Oppose is a verb.
"Oh" is an interjection. It is used to express emotions like surprise, excitement, or disappointment.
Sadly is an adverb. It is used to modify or describe verbs, adjectives, or other adverbs by indicating a sense of sorrow, regret, or disappointment.
aw is also an interjection. remember any words that express hard feelings is an interjection
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.