AT PRESENT › at the present time: She's finished her degree and now she teaches English. Do you know where Eva is right now (= at this moment)?
IMMEDIATELY › immediately: Come on, Andreas, we're going home now. I don't want to wait - I want it now!
LENGTH OF TIME › used to show the length of time that something has been happening, from the time it began until the present: I've lived in Cambridge for two years now.
IN SPEECH › used when you start to tell someone something: Now, I have been to Glasgow many times before. Now then, would anyone else like to ask a question?
just now › a very short time ago: When I came in just now, everyone was laughing. Who was that woman who was speaking just now?
(every) now and then/again › If something happens now and then, it happens sometimes but not very often: I love chocolate, but I only eat it now and then.
any day/minute/time, etc now › used to say that something will happen very soon: We're expecting our second child any day now.