noun
Some yellowish matter oozed out of the wound. It is a question of mind over matter
It was a matter of life and death. His loss of face is not a matter that need involve you
What is the matter?
Pay attention to the matter in his speech, not his manner. It is of little matter to me whether you go or not
It was only a matter of a few pennies' difference
verb
What you think matters a great deal
US