Mass (disambiguation)

• Mass, a physical quantity describing the amount of matter in something (everything it is made of)
• Thermal mass, a mass which absorbs heat

• Mass (liturgy), the main worship service of many Christian churches
• Mass (music), a piece of music for choir, which is sung during the religious service. The text of this is usually from a religious setting

• Mass (movie), a Tollywood movie starring Akkineni Nagarjuna
• Mass (theatre), a 1971 musical play by Leonard Bernstein based on Roman Catholic liturgy
• Mass (band), a post-punk band who recorded for the 4AD label
• The Mass (band), an American jazzcore band

• Mass., an abbreviation for the U.S. state of Massachusetts
• Landmass (also land mass)

• Body mass index, a health indicator to do with to human body weight and height
• Muscle mass, a bodybuilding term to do with the configuration of muscles in a person's body
• MASS, the common acronym for sports nutrition company Muscle And Sports Science
• Mass (medicine), a tumor

• Isaac Mass, a Franklin County, Massachusetts politician
• Mass, another name for electronic musician Peter Harris, more commonly known as Blu Peter

In the plural form, the masses, can mean:

• The working class or the people ("the masses"). See also multitudes. Masses are disorganized, as opposed to classes (see class consciousness).
• Hoi polloi (or "the masses"), a term that usually refers to ordinary, simple people (not important people like rulers and aristocracy)
• The Masses, a Socialist magazine

An adjective describing a large amount of something, as in:

• mass production
• mass transit
• mass communication
• mass education
• mass marketing
• mass media
• mass murder
• mass suicide
• weapons of mass destruction
• mass burial
• mass hysteria
• mass storage