Verb break open has 3 senses
  1. break open - open with force; "He broke open the the picnic basket"
    --1 is one way to
    open, open up
    Sample sentence:
    They want to break open the doors
  2. burst, split, break open - break open or apart suddenly; "The bubble burst"
    --2 is one way to break, separate, split up, fall apart, come apart
    Sample sentences:
    Something ----s
    Somebody ----s something
    Something ----s something
  3. erupt, irrupt, flare up, flare, break open, burst out - erupt or intensify suddenly; "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
    --3 is one way to intensify, deepen
    Sample sentences:
    Something ----s
    Somebody ----s