Synonyms for Matter (same or very similar meaning)
WordNet sense 1 (some situation or event that is thought about):
issue, subject, topic, subjectWordNet sense 2 (a vaguely specified concern):
affair, thingWordNet sense 3 (have weight; have import, carry weight):
count, weighWordNet sense 4 (that which has mass and occupies space):
substanceFrom the ODE community, based on WordNetadd/edit