to suddenly become violent or intense
plötzlich gewalttätig oder intensiv werden (plötzlich gewalttätig oder intensiv werden)
"The argument blew up into violence before police arrived."
"Der Streit eskalierte in Gewalt, bevor die Polizei eintraf." (Der Streit **eskalierte in Gewalt**, bevor die Polizei eintraf.)
to express one's opinion openly about a topic
to meet and discuss something as a group
to become more lively, cheerful, or interested
to imagine or invent something new or creative
to reduce anxiety ahead of an event
to become friends again naturally after a conflict