break into

verb4

1. •
   To enter illegally or by force, especially in order to commit a crime.

   • Somebody broke into his car and stole his tools and CDs.
   • Hackers broke into the bank's computer system and stole customer data.
2. •
   To begin suddenly.

   • The horse broke into a gallop as they neared the barn.
   • I just broke into tears while talking to my mom.
3. •
   To successfully enter a profession or business.

   • He hopes to break into show business.
4. •
   To open or begin to use.

   • I finally broke into the second package of cookies.