Available Definitions:
1) adv. - At the present time; at this moment; at the time of speaking; instantly; as, I will write now.
2) adv. - Very lately; not long ago.
3) adv. - At a time contemporaneous with something spoken of or contemplated; at a particular time referred to.
4) adv. - In present circumstances; things being as they are; -- hence, used as a connective particle, to introduce an inference or an explanation.
5) a. - Existing at the present time; present.
6) n. - The present time or moment; the present.