0 an occasion when something important happens that tests someone or something and that will have an effect on the future:
The shop steward is the moment of truth in this process.
It is not any more a question of nice words, but now is the moment of truth and now we have to take our responsibilities.
Now, the moment of truth has arrived in which we must be prepared to defend the little influence we have.
This is the moment of truth, this is the moment to practise what we preach and state what we really believe in.
Indeed, the moment of truth will come if the beef ban is lifted.
I then realised that here we had reached the moment of truth in post-war defence policy.
For those of us who made our agreement dependent on the terms offered, as most of us did, the moment of truth has arrived.
He came here in sackcloth and ashes; the moment of truth had arrived.
