The definition of success over the years has been slightly redefined with each generation. To the people of old, it was having a large ranch of cattles, sheeps, and goats, then it came to a time where farmers with large fields for farming and plentiful harvest yearly were termed successful down to the industrial and information age where money and properties puts one into the categories of successful people. Much has not changed, but the major difference with the definition of success from the olden days and the present generation is that; success was not only measured by treasures, but also childbirth. Someone needed to be successful in every facet to be termed successful. So if a woman was rich but barren, her success wasn't complete or if she was single but had money, her success wasn't complete.
However, the definition of success is subjective. What I consider to be success might not be what success means to another, and that's why it's important to understand what success means to different people. A few years ago, a distinction student who was reading 5.00 in her CGP dropped slightly to 4.89. She cried the whole day considering herself as a failure while we sat at the other end wondering why she felt she had failed when the grade was still okay. To us it was a success, not just success, but a good one, but there she was feeling like a failure. Everyone would have given her a handshake for having such a grade,but she didn't see it as our own view.
To me, success is to achieve one's goals and the ability to learn through the process. As long as we are learning, this also is a success. It doesn't matter if one has reached his goal or not, but learning while we strive to achieve a goal and achieving the actual goal is success. This definition I learned from Thomas Edison, the man who invented the electric bulb. Documentaries alleged he tried 99 times and became successful the 100th time. To him , the 99 failures weren't failures at all but a knowledge of what works and doesn't. This makes me believe every process of learning is also a success in disguise, so success starts at the point where we start to learn even in failure to the point where we achieve what we desire.
Success is not particularly tied to money, money is just an evidence of success. Success can start from menial activities like dressing up the bed early in the morning, being able to drain the sink, going out on a visit, etc. As long as our task is achieved, and we learned in the process, we were successful. So every task done, every knowledge gained in the process; is success.