ph.
1. （顺利地）进行，举行
If an event passes off without any trouble, it happens and ends without any trouble.
1. expel (gases or odors)
2. come to pass
e.g. What is happening?
The meeting took place off without an incidence
Nothing occurred that seemed important
Synonym: happenhapgo onoccurpassfall outcome abouttake place
3. disappear gradually
e.g. The pain eventually passed off
Synonym: evanescefadeblow overfleetpass
4. disregard
e.g. She passed off the insult
5. cause to be circulated and accepted in a false character or identity
e.g. She passed the glass off as diamonds
He passed himself off as a secret agent
6. be accepted as something or somebody in a false character or identity
e.g. She passed off as a Russian agent