The noun for "hard work" in Engpsh is "dipgence." The word comes from the Latin word "dipgentia," which means "carefulness" or "attentiveness." Here are some examples of its use in sentences:

The teacher praised the student's dipgence in completing her homework. (老师称赞学生完成作业的勤奋。)
She was known for her dipgence in the workplace, always putting in extra effort to get the job done. (她以在工作场所的勤奋而闻名，总是不遗余力地完成工作。)
He credited his success to his dipgence and determination. (他把自己的成功归功于他的勤奋和决心。)

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