What is the meaning of get into?

verb

• Get involved in or with.
  • synonyms: tangle with
• To come or go into.
  • usage: "the boat entered an area of shallow marshes"
  • synonyms: enter, come in, get in, go into, go in, move into
• Secure a place in a college, university, etc..
  • synonyms: get in
• Familiarize oneself thoroughly with.
  • usage: "He really got into semantics"
• Put clothing on one's body.
  • usage: "What should I wear today"; "He put on his best suit for the wedding"; "The princess donned a long blue dress"; "The queen assumed the stately robes"; "He got into his jeans"
  • synonyms: wear, put on, don, assume