How do you define success for yourself?
They want to know what success means to you. They are trying to determine whether you evaluate success as your own personal success, the success of your team, or something bigger, like developing a vaccine. All three should come into play in your answer.
Tell the interviewer how you evaluate success. Weave your answer into the success you plan to bring with you to your next role.
"I consider myself a successful person. I set goals for myself and I meet those goals. When I'm not setting goals, I gauge my success based on how adaptable I am to changing course or improving my expectations and then redefine my goals to ensure I meet them. Every failure is a growth opportunity. Regarding all my big picture goals, I take what I learn from my setbacks and apply those lessons toward moving forward. The only true failure is quitting--and I'm not a quitter. "
