Definitions of Mass:

• noun:   (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist
• noun:   the property of a body that causes it to have weight in a gravitational field
• noun:   a sequence of prayers constituting the Christian eucharistic rite

  Example: "The priest said Mass"

• noun:   a musical setting for a Mass

  Example: "They played a Mass composed by Beethoven"

• noun:   an ill-structured collection of similar things (objects or people)
• noun:   a body of matter without definite shape

  Example: "A huge ice mass"

• noun:   the property of something that is great in magnitude

  Example: "He received a mass of correspondence"

• noun:   the common people generally

  Example: "Separate the warriors from the mass"

• noun:   (often followed by `of') a large number or amount or extent
• verb:   join together into a mass or collect or form a mass

  Example: "Crowds were massing outside the palace"

• adjective:   occurring widely (as to many people)

  Example: "Mass destruction"

• adjective:   gathered or tending to gather into a mass or whole
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #18100)