What is the meaning of get in?

verb

• To come or go into.
  • usage: "the boat entered an area of shallow marshes"
  • synonyms: enter, come in, get into, go into, go in, move into
• Succeed in a big way; get to the top.
  • usage: "After he published his book, he had arrived"; "I don't know whether I can make it in science"; "You will go far, my boy"
  • synonyms: arrive, make it, go far
• Secure a place in a college, university, etc..
  • synonyms: get into
• Of trains; move into (a station. )
  • usage: "The bullet train drew into Tokyo Station"
  • synonyms: pull in, move in, draw in