It depends on the context. One would be the mass.
expert opinions about matter and energy
Matter is everything, even air, ourselfs, and your computer! If there was no such thing as matter there would be no such thing as existance!
it would be the brick because the brick has more matter because it weighs more.
the volume or mass of the matter. it can change states such as solid liquid or gas, which would be deemed to be the same chemical identity, but a different state of matter
There was no doubt as to the urgency of the matter as exemplified by the terrified expressions on the observers.
go to a doctor as a matter of urgency!
Finding a solution to the problems of climate change is a matter of urgency, not something we can leave until later.
I cannot put enough emphasis on the urgency of this matter.
His job required the him to have urgency in taking the photo of the celebrity, and if he did not do so, he would be fired from the newspaper staff
You should seek professional medical advice as a matter of urgency.
the quality or condition of being urgent; pressing importance: the urgency of the call for help; pleading with urgency.
Contact the US embassy as a matter of urgency. They will be able to advise you and help you to get a replacement passport.
There was a sense of urgency in the department.
The term used is :urgency:
The opposite of a sense of urgency is a sense of complacency.
The base word of urgency is "urgent."