noun

1. (physical) Matter, material.

2. A large quantity; a sum.

verb

1. To form or collect into a mass; to form into a collective body; to bring together into masses; to assemble.

2. To have a certain mass.

   “I mass 70 kilograms.”

adjective

1. Involving a mass of things; concerning a large quantity or number.

   “There is evidence of mass extinctions in the distant past.”

2. Involving a mass of people; of, for, or by the masses.

   “Mass unemployment resulted from the financial collapse.”

Synonyms: weigh