1 at present, just now, right now, at the present time or moment, at this (very) moment or minute or second or instant:
He's in the shower and cannot come to the phone now.
2 these days, nowadays, today, in these times, at the moment, in this day and age, under or in the present circumstances or conditions, in the present climate, things being what they are, contemporarily, any more, any longer; for the time being, for the nonce:
What makes you say that the minimum wage is enough to live on now? Selling now might bring the highest price
3 at once, immediately, right away, without delay, instantly, promptly, Chiefly law instanter, Chiefly Brit straight away:
I want you here now - not in five minutes, but now!
4 now and then or again. occasionally, from time to time, at times, on occasion, sometimes, sporadically, once in a while, every now and then or again, randomly, intermittently; infrequently, seldom, rarely, once in a blue moon:
There was a power cut now and then. He visits his mother only now and then.
5 contemporary, up to date, modern, stylish, fashionable, trendy, Colloq in, with it:
Advertisers must appeal to the yuppies of the now generation.