Shakyamunison
Nam Myoho Renge Kyo
Here are two more sets of definitions
Merriam-Webster
re•li•gion
noun \ri-ˈli-jən\
: the belief in a god or in a group of gods
: an organized system of beliefs, ceremonies, and rules used to worship a god or a group of gods
: an interest, a belief, or an activity that is very important to a person or group
cult
noun, often attributive \ˈkəlt\
: a small religious group that is not part of a larger and more accepted religion and that has beliefs regarded by many people as extreme or dangerous
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Dictionary.com
religion
[ri-lij-uh n]
• Examples
• Word Origin
noun
1. a set of beliefs concerning the cause, nature, and purpose of the universe, especially when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and often containing a moral code governing the conduct of human affairs.
2. a specific fundamental set of beliefs and practices generally agreed upon by a number of persons or sects:
the Christian religion; the Buddhist religion.
3. the body of persons adhering to a particular set of beliefs and practices:
a world council of religions.
4. the life or state of a monk, nun, etc.:
to enter religion.
5. the practice of religious beliefs; ritual observance of faith.
6. something one believes in and follows devotedly; a point or matter of ethics or conscience:
to make a religion of fighting prejudice.
7. religions, Archaic. religious rites:
painted priests performing religions deep into the night.
cult
[kuhlt]
noun
1. a particular system of religious worship, especially with reference to its rites and ceremonies.
2. an instance of great veneration of a person, ideal, or thing, especially as manifested by a body of admirers:
the physical fitness cult.
3. the object of such devotion.
4. a group or sect bound together by veneration of the same thing, person, ideal, etc.
5. Sociology. a group having a sacred ideology and a set of rites centering around their sacred symbols.
6. a religion or sect considered to be false, unorthodox, or extremist, with members often living outside of conventional society under the direction of a charismatic leader.
7. the members of such a religion or sect.
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There is a lot of overlap in the definitions. As a mater of fact, all religions were at one time a cult. The main difference is size and the belief of others.
For example: Christianity was considered to be a cult by the Romans, and was persecuted for their beliefs that were viewed by the majority as being false. At that point in time it would have been appropriate to call Christianity a cult. However, today Christianity is a major religion and the word cult would not fit.