What part of speech is the word dance?

Answer 1

Depends.

In the sentence "The dancing monkey is cute." it is an adjective used to describe the monkey. Which monkey? The dancingmonkey.

But in the sentence "I am dancing." It is a verb.

Answer 2

The word danced is a verb. It is the regular past tense of the verb dance.

Answer 3

The word dance can be a noun and a verb.

The noun form is a sequence of rhythmic moves.

The verb forms means to move in a sequence of rhythmic moves.