part of speech: noun

definition 1: all substances that contain atoms and take up space.

  • Matter includes solids, liquids, and gases.

synonyms: stuff, substance

definition 2: a topic of concern or interest.

  • I want to discuss the matter of my allowance.

synonyms: affair, business, concern

definition 3: difficulty or trouble.

  • What’s the matter?

synonyms: concern, difficulty, problem

definition 4: something written or printed.

  • I have lots of reading matter about U.S. history.

part of speech: verb

inflections: matters, mattering, mattered

definition: to be of importance.

  • It does not matter to me who you invite.

synonyms: carry weight, count