Accomplishment, Execution
noun, verbal noun
Accomplish and go forth! These are your accomplishments. This is your execution of actions.
すいこう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
恥ずかしいことに、その任務の遂行に失敗してしまいました。
I am embarrassed that I failed the execution of the mission.