Definitions

1. noun

a substance that has mass and takes up space, or a thing that is of concern or interest

“The new particle was a matter of great interest to the scientific community.”

2. verb

to concern or affect someone or something

“Her health matters a lot to her family.”

3. verb

to deal with or settle something

“We need to matter this dispute before it escalates further.”

4. noun

the subject of a court case or lawsuit

“The matter was heard in court yesterday.”

5. noun

a material or substance

“The new matter in the lab was a mixture of chemicals.”