matter

noun

1
that which has mass and occupies space
physicists study both the nature of matter and the forces which govern it
2
(used with negation) having consequence
they were friends and it was no matter who won the games
3
a vaguely specified concern
several matters to attend to
it is none of your affair
4
a problem
is anything the matter?
5
some situation or event that is thought about
he kept drifting off the topic
he had been thinking about the subject for several years
6
written works (especially in books or magazines)
he always took some reading matter with him on the plane

Also useful for “matter”:Unscrambler— Rearrange the letters in “matter”