adjective
Definition: Referring to the present time or moment; current.
Example: The now generation is very tech-savvy.
adverb
Definition: At this moment or time; used to refer to the present.
Example: I need you to finish your homework now.
conjunction
Definition: At the present time; at this moment.
Example: Now that we have finished our work, we can relax.
noun
Definition: The present time or moment.
Example: We need to focus on the now and not worry about the past.