1.Definition: (used with negation) having consequence

"They were friends and it was no matter who won the games"

Category: General

2.Definition: a problem

"Is anything the matter?"

Category: General

3.Definition: a vaguely specified concern

"Several matters to attend to", "It is none of your affair", "Things are going well"

Category: General

4.Definition: some situation or event that is thought about

"He kept drifting off the topic", "He had been thinking about the subject for several years", "It is a matter for the police"

Related Noun(s):issue, subject, topic

Category: General

5.Definition: that which has mass and occupies space

"Physicists study both the nature of matter and the forces which govern it"

Category: General

6.Definition: written works (especially in books or magazines)

"He always took some reading matter with him on the plane"

Category: General