1. (n.)mass a body of coherent matter, usu. of indefinite shape: a mass of dough.
2. mass a collection of incoherent particles, parts, or objects regarded as forming one body: a mass of sand.
3. mass aggregate; whole: People, in the mass, mean well.
4. mass a considerable number or quantity: a mass of errors.
5. mass bulk; massiveness: towers of great mass and strength.
6. mass the greater part of something: the great mass of American films.
7. mass the masses, the ordinary or common people as a whole.
8. (adj.)mass pertaining to, involving, or affecting a large number of people: mass unemployment.
9. mass participated in or performed by a large number of people: mass demonstrations.
10. mass involving or characteristic of the mass of the people: a mass audience.
11. mass designed to reach a large number of people: mass communications.
12. mass done on a large scale: mass destruction.
13. (v.i.)mass to come together in or form a mass: clouds massing in the west.
14. (v.t.)mass to assemble or distribute in a mass: houses massed in blocks.
15. (n.)mass (often cap.) the liturgy of the Eucharist.
16. mass (often cap.) the celebration of the Eucharist.
17. mass a musical setting of the mass.
Etymology: (bef. 900; OE mæsse < VL *messa, LL missa, formally fem. of L missus, ptp. of mittere to send)
Definition of 'mass'
Princeton's WordNet
1. (noun)mass the property of a body that causes it to have weight in a gravitational field
2. (noun)batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad (often followed by `of') a large number or amount or extent "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "see the rest of the winners in our huge passel of photos"; "it must have cost plenty"; "a slew of journalists"; "a wad of money"
3. (noun)mass an ill-structured collection of similar things (objects or people)
4. (noun)Mass (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist
5. (noun)mass a body of matter without definite shape "a huge ice mass"
6. (noun)multitude, masses, mass, hoi polloi, people, the great unwashed the common people generally "separate the warriors from the mass"; "power to the people"
7. (noun)bulk, mass, volume the property of something that is great in magnitude "it is cheaper to buy it in bulk"; "he received a mass of correspondence"; "the volume of exports"
8. (noun)Mass a musical setting for a Mass "they played a Mass composed by Beethoven"
9. (adj)Mass a sequence of prayers constituting the Christian Eucharistic rite "the priest said Mass"
10. (verb)aggregate, aggregated, aggregative, mass formed of separate units gathered into a mass or whole "aggregate expenses include expenses of all divisions combined for the entire year"; "the aggregated amount of indebtedness"
11. (verb)mass join together into a mass or collect or form a mass "Crowds were massing outside the palace"
2. (noun)mass the portions of the Mass usually set to music, considered as a musical composition; -- namely, the Kyrie, the Gloria, the Credo, the Sanctus, and the Agnus Dei, besides sometimes an Offertory and the Benedictus
3. (noun)mass a quantity of matter cohering together so as to make one body, or an aggregation of particles or things which collectively make one body or quantity, usually of considerable size; as, a mass of ore, metal, sand, or water
4. (noun)mass a medicinal substance made into a cohesive, homogeneous lump, of consistency suitable for making pills; as, blue mass
8. (noun)mass the quantity of matter which a body contains, irrespective of its bulk or volume
9. (verb)mass to celebrate Mass
10. (verb)mass to form or collect into a mass; to form into a collective body; to bring together into masses; to assemble
Definition of 'mass'
The Standard Electrical Dictionary
1. mass The quantity of matter in a body. The C. G. S. unit of mass is the quantity of matter in a gram. While weight varies with latitude and other circumstances, mass is invariable.
Definitions of mass 
Afrikaans: massa, hoeveelheid
Arabic: كُتْلَه كبيرَه ، حَشْدٌ م
Bulgarian: голямо доза
Brazilian: massa
Czech: hromada
German: die Masse
Danish: masse; mængde
Greek: μάζα
Spanish: montón, masa
Estonian: mass, hulk
Farsi: انبوه
Finnish: kasa
French: amas
Hebrew: גוּש
Hindi: परिमाण
Croatian: masa, gomila
Hungarian: tömeg
Indonesian: kumpulan
Icelandic: massi; hrúga; klumpur; fj
Italian: massa
Japanese: かたまり
Korean: 덩어리, 모임
Lithuanian: masė, daugybė
Latvian: liels daudzums; (ļaužu) m
Malay: kumpulan
Dutch: massa
Norwegian: klump, masse, mengde
Polish: masa
Persian: ،كتله انبوه
Pashto: كتله
Portuguese: monte
Romanian: masă
Russian: куча, груда
Slovak: masa
Slovenian: masa
Serbian: masa
Swedish: massa
Thai: ปริมาณมาก
Turkish: yığın
Taiwanese: 大團，大堆，大群
Ukrainian: велика кількість, безліч
Urdu: ڈھیر
Vietnamese: khối; đống
Chinese: （聚成一体的）团，块，堆，群，片
