(noun, adjective, verb)


1. formed of separate units gathered into a mass or whole

Similar word(s): collective, aggregate, aggregated, aggregative

Sentences with mass as an adjective:

- There is evidence of mass extinctions in the distant past.

- Mass unemployment resulted from the financial collapse.


1. the property of a body that causes it to have weight in a gravitational field

Definition categories: attribute

2. (often followed by `of') a large number or amount or extent

Similar word(s): batch, deal, flock, hatful, heap, lot, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, raft, sight, slew, spate, stack, wad

Definition categories: quantity

3. an ill-structured collection of similar things (objects or people)

Definition categories: group, accumulation, aggregation, assemblage, collection

4. (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist

Definition categories: act

5. a body of matter without definite shape

- a huge ice mass

Definition categories: object, body

6. the common people generally

- separate the warriors from the mass

Similar word(s): masses, multitude, people

Definition categories: group, grouping

7. the property of something that is great in magnitude

- he received a mass of correspondence

Similar word(s): bulk, volume

Definition categories: attribute, magnitude

8. a musical setting for a Mass

- they played a Mass composed by Beethoven

Definition categories: communication

9. a sequence of prayers constituting the Christian Eucharistic rite

- the priest said Mass

Definition categories: communication, prayer

Sentences with mass as a noun:

- The mass of spectators didn't see the infraction on the field.

- A mass of ships converged on the beaches of Dunkirk.

- The masses are revolting.


1. join together into a mass or collect or form a mass

- Crowds were massing outside the palace

Definition categories: motion, crowd

Sentences with mass as a verb:

- I mass 70 kilograms