The harbor masters oversee the operations of the port.

The house masters are responsible for the well-being of the students in their respective houses.

The government imposed heavy levies on goods in mass.

The mass effects of the explosion were felt throughout the city.

The brewery has multiple mash tuns for brewing beer.

The mass differences between the two objects are significant.

Mass energies are fundamental concepts in physics.

Mass spectra are used to analyze the composition of a substance.

The mass-energies of the particles in the system are calculated using the equation E=mc^2.

The city held mass funerals for the victims of the tragedy.