1.
A passing fashion, activity, or feeling lasts for only a short period of time and is not worth taking very seriously.
Hamnett does not believe environmental concern is a passing fad...
? lasting
ADJ: ADJ n
2.
The passing of something such as a time or system is the fact of its coming to an end.
It was an historic day, yet its passing was not marked by the slightest excitement...
N-SING: with poss
3.
You can refer to someone's death as their passing, if you want to avoid using the word 'death' because you think it might upset or offend people.
His passing will be mourned by many people.
N-SING: with poss
4.
The passing of a period of time is the fact or process of its going by.
The passing of time brought a sense of emptiness...
= passage
N-SING: the N of n
5.
A passing mention or reference is brief and is made while you are talking or writing about something else.
It was just a passing comment, he didn't go on about it...
= casual
ADJ: ADJ n
6.
see also <a href="">passa>
7.
If you mention something in passing, you mention it briefly while you are talking or writing about something else.
The army is only mentioned in passing.
= incidentally
PHRASE: PHR with cl, PHR after v