Verbs

(v)break openopen with force“He broke open the picnic basket”
(v)burst, split, break opencome open suddenly and violently, as if from internal pressure“The bubble burst”
(v)erupt, irrupt, flare up, flare, break open, burst outerupt or intensify suddenly“Unrest erupted in the country”, “Tempers flared at the meeting”, “The crowd irrupted into a burst of patriotism”