to become angry suddenly
突然怒る (tōden okoru)
"He lost his temper when the kids broke the vase."
"子供たちが花瓶を壊したとき、彼はかっとなった。" (kodomotachi ga kabin o kowashita toki, kare wa **katto natta**.)
to become very angry
something new and refreshing
to suddenly become angry
to shout and complain loudly
to make unrealistic plans or dreams
used to say that everything is fine or there is no problem