Meaning & use
mass
The quantity of matter in an object, measured by its resistance to acceleration; also a large body or quantity of something.
See it in a sentence
Scientists measured the mass of the asteroid using its gravitational pull.
A mass of dark clouds gathered on the horizon before the storm.
A note on using this word
Mass differs from weight, since mass stays constant while weight changes with gravity; capitalized, Mass also names a Christian worship service, an unrelated sense.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. proper noun
A religious service in some Christian traditions, especially the Catholic Church, centered on Holy Communion.
They attend Mass together every Sunday morning at the local parish.
Make it your own
Write a sentence using “mass”, then compare your use with the examples above.