matters

1.

vấn đề

physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

:
the structure and properties of matter
2.

vấn đề

an affair or situation under consideration; a topic.

:
a great deal of work was done on this matter
1.

vấn đề

be of importance; have significance.

:
it doesn't matter what the guests wear
2.

vấn đề

(of a wound) secrete or discharge pus.