matter

(noun) a vaguely specified concern. Synonyms: affair, thing. Examples: "Several matters to attend to." "It is none of your affair." "Things are going well."

(noun) some situation or event that is thought about. Synonyms: topic, subject, issue. Examples: "He kept drifting off the topic." "He had been thinking about the subject for several years." "It is a matter for the police."

(noun) that which has mass and occupies space. Example: "Physicists study both the nature of matter and the forces which govern it."

(noun) a problem. Example: "Is anything the matter?."

(noun) (used with negation) having consequence. Example: "They were friends and it was no matter who won the games."

(noun) written works (especially in books or magazines). Example: "He always took some reading matter with him on the plane."

(verb) have weight; have import, carry weight. Synonyms: count, weigh. Example: "It does not matter much."