A large body of matter with no definite shape. noun
The mass of the mountain loomed in the distance.
A mass of clouds gathered in the sky, signaling an approaching storm.
A large number of people or objects crowded together. noun
A mass of spectators gathered to watch the parade.
The mass of commuters filled the subway station during rush hour.
The quantity of matter that a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field. noun
The mass of the object was calculated using a balance.
In physics, mass is often measured in kilograms.
A religious ceremony in the Christian Church, especially the Roman Catholic Church, including the celebration of the Eucharist. noun
The family attended mass every Sunday.
The priest led the congregation in the celebration of mass.
To assemble or come together in large numbers. verb
Protesters began to mass in front of the government building.
Troops massed along the border in preparation for the conflict.
Relating to, done by, or affecting large numbers of people or things. adjective
The company launched a mass marketing campaign.
Mass production revolutionized the manufacturing industry.