“mass”

Persons forming or belonging to a particular group, such as a nation, class, ethnic group, country, family, etc.

before a countable noun: A large, indefinite number of.

The foremost side of something or the end that faces the direction it normally moves.

The impetus behind all motion and all activity.

A heavy, pliable, inelastic metal element, having a bright, bluish color, but easily tarnished; both malleable and ductile, though with little tenacity. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic number 82.

Any small, natural and bright dot in the sky, most visible in the night or twilight sky. This sense includes the planets, but it is now sometimes used in exclusion of them due to influence from the technical astronomical sense.