What is the meaning of get together?

noun

• A small informal social gathering.
  • usage: "there was an informal meeting in my living room"
  • synonyms: meeting

verb

• Get people together.
  • usage: "assemble your colleagues"; "get together all those who are interested in the project"; "gather the close family members"
  • synonyms: assemble, gather
• Get together socially or for a specific purpose.
  • synonyms: meet
• Work together on a common enterprise of project.
  • usage: "The soprano and the pianist did not get together very well"; "We joined forces with another research group"
  • synonyms: collaborate, join forces, cooperate
• Become part of; become a member of a group or organization.
  • usage: "He joined the Communist Party as a young man"
  • synonyms: join, fall in