What is the meaning of get along?

verb

• Proceed or get along.
  • usage: "How is she doing in her new job"; "How are you making out in graduate school"; "He's come a long way"
  • synonyms: do, fare, make out, come
• Have smooth relations.
  • usage: "My boss and I get along very well"
  • synonyms: get along with, get on with, get on
• Develop in a positive way.
  • usage: "He progressed well in school"; "My plants are coming along"; "Plans are shaping up"
  • synonyms: progress, come on, come along, advance, get on, shape up