matter

n 1: that which has mass and occupies space; "an atom is the smallest indivisible unit of matter" syn substance

2: a vaguely specified concern; "several matters to attend to"; "it is none of your affair"; "things are going well" syn affair, thing

3: 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" syn topic, subject, issue

4: a problem; "is anything the matter?" 5: (used with negation) having consequence; "they were friends and it was no matter who won the games"

6: written works (especially in books or magazines); "he always took some reading matter with him on the plane"

v : have weight; have import, carry weight; "It does not matter much" syn count, weigh

Source: WordNet. Princeton University