The government imposed a levy on mass transit.

I attended midnight mass at the church.

The continent is a large land mass.

The Earth is made up of several land masses.

I attended the morrow-mass at the church.

The mulberry mass is a stage of embryonic development.

The mulberry masses were ripe and ready to be harvested.

The doctor prescribed a blue mass for my condition.

The mass function is a mathematical function that describes the distribution of masses for a group of objects.

The church is known for its beautiful mass bells.