The phrase "ability and dedication" is correct and usable in written English.
You can use it to describe someone's skills and commitment to a task or role, often in a professional or academic context.
Example: "Her ability and dedication to her work have made her an invaluable member of the team."
Alternatives: "skill and commitment" or "capability and perseverance."
Her boss said yes — but of course, Ms. Uttech had already proved her ability and dedication for about nine years by that point.
The Governor was not convinced it was a suitable grounding for a useful life, but so long as he showed ability and dedication, he would trust his son's instincts.
Although his natural ability and dedication have helped make him one of the world's best hurdlers and potentially one of the better sprinters, his agenda here seemed overly ambitious.
Murray's ability and dedication had never been in doubt, but after four defeats in Grand Slam finals he had still to dispel the doubts as to whether he had what it took to claim the ultimate prize.
But it adds that "at the discretion of Whitehouse, a scholarship for further study may be offered during the academic year to students who have formally commenced their studies and show exceptional ability and dedication".
Later, I learned how satisfying it could be to work hard for causes in which I believe so deeply, in company with colleagues of extraordinary ability and dedication," he said at the time.
A gold medal signified the sporting abilities and dedication of individual athletes, not the supposed merits of the political system that produced them.
While defending the abilities and dedication of his examiners, he said his agency waited too long to crack down on abuses at Riggs and described the situation at the bank as "deeply troubling".
My belief in that ideal has only strengthened over these past 10 months as I have been able to both lead and witness firsthand the extraordinary abilities and dedication of our student-athletes, coaches and staff.
The participants (ages 19 and under), from more than 15 countries across Latin America and the Caribbean, are selected by FIBA and the NBA in conjunction with participating basketball federations, based on their basketball skills, leadership abilities and dedication to the sport.
The reader can only marvel that a man of such prodigious ability, enthusiasm and dedication ever lived.
