Meaning of “moment” - Learner’s Dictionary

moment

noun uk us /ˈməʊmənt/
SHORT TIME [ C ]

A2 a very short period of time:

I'll be back in a moment.
For a moment I thought it was Anna.
Could you wait a moment?
POINT IN TIME [ C ]

B1 a point in time:

Just at that moment, the phone rang.
at the moment

A2 now:

I'm afraid she's not here at the moment.
for the moment

B2 If you do something for the moment, you are doing it now but might do something different in the future:

For the moment, let's do what we agreed to.
the moment (that)

as soon as:

I'll call you the moment I hear anything.

(Definition of “moment” from the Cambridge Learner’s Dictionary © Cambridge University Press)