the fact or moment of starting to understand a situation

[ + that ] The realization was dawning that this was a major disaster. 人们开始意识到这是一场大灾难。

the act or moment of achieving something you planned to do or hoped for

To win the Olympic gold medal was the realization of his life's dream. 赢得奥运会金牌就实现了他平生的夙愿。

the act of getting money by selling something

Even the realization of all his assets would not be enough to prevent financial ruin. 即使变卖他所有的资产也无法使他免于破产。