Noun

• S: (n) now (the momentary present) "Now is a good time to do it"; "it worked up to right now"

Adverb

• S: (adv) now (in the historical present; at this point in the narration of a series of past events) "President Kennedy now calls in the National Guard"; "Washington now decides to cross the Delaware"; "the ship is now listing to port"
• S: (adv) nowadays, now, today (in these times) "it is solely by their language that the upper classes nowadays are distinguished"- Nancy Mitford; "we now rarely see horse-drawn vehicles on city streets"; "today almost every home has television"
• S: (adv) now (used to preface a command or reproof or request) "now hear this!"; "now pay attention"
• S: (adv) now, at present (at the present moment) "goods now on sale"; "the now-aging dictator"; "they are now abroad"; "he is busy at present writing a new novel"; "it could happen any time now"
• S: (adv) immediately, instantly, straightaway, straight off, directly, now, right away, at once, forthwith, like a shot (without delay or hesitation; with no time intervening) "he answered immediately"; "found an answer straightaway"; "an official accused of dishonesty should be suspended forthwith"; "Come here now!"
• S: (adv) now ((prefatory or transitional) indicates a change of subject or activity) "Now the next problem is..."
• S: (adv) now (in the immediate past) "told me just now"