What part of speech is the word now?

The word "now" can be a few different parts of speech, depending on its use in a sentence:

* Adverb: This is the most common use of "now." It modifies a verb, adjective, or another adverb, indicating time.

* Example: "Now is the time to act." ("Now" modifies the verb "is")

* Interjection: "Now" can express surprise, agreement, or impatience.

* Example: "Now, that's what I'm talking about!"

* Noun: Less common, but "now" can function as a noun, referring to the present moment.

* Example: "The future is unknown, but now is ours to shape."

To determine the specific part of speech, you need to consider the context of the sentence.