こととする

こととする【事とする】

〔そのことばかりをする〕 spend all one's time on…; do nothing but…; only do; 《文》 devote oneself entirely to…; devote all one's time to….

●天下国家を事として妻子をかえりみない devote oneself entirely to affairs of state [think of nothing but setting the world to rights] and forget one's wife and child(ren)

・殺戮(_さつりく)と破壊を事とする集団 a group devoted to carnage and destruction.

●組合は相も変わらず反対を事としている. As always the unions still do nothing but oppose everything.

・晴耕雨読を事とする穏やかな老後が私の夢だ. My dream is to have a calm retirement tilling the fields in good weather and reading in bad.