moment
‘moment’
A moment is a very short period of time.
She hesitated for only a moment.
A few moments later he heard footsteps.
‘the moment’
The moment is often used as a conjunction to say that something happens or is done at the same time as something else, or immediately after it.
The moment I heard the news, I rushed over to her house.
When you use the moment in this way to talk about the future, you use the present simple after it. Don't use a future form.
The moment he arrives, ask him to come and see me.
‘at the moment’
At the moment means now, at the present time.
I'm very busy at the moment.
Be careful
Don't say ‘I’m very busy in the moment' or ‘I’m very busy in this moment'.
Don't say ‘I’m very busy in the moment' or ‘I’m very busy in this moment'.
‘in a moment’
You can use in a moment to mean ‘soon’.
Wait there – I'll be back in a moment.