now

now is one of the 1000 most common headwords.

notice - now - number

Preposition

You use now when you want to say that something is true at this time. It is also used for things a short time in the future or a short time in the past.
I had many problems before, but I'm OK now.

What did you say just now?

The English teacher is at the library now.
You use now at the beginning of a sentence to get people's attention.
Now, I'd like to hear from other people too.
You use now to indicate that an event has occurred and as a result something else may or will happen.
I’m going to relax now the school year is over.