Development, advance. Is a process that happens in a period of time, that is why I like to represent it as a walker (in the designers case, is a mental walker).
When I think about evolution, I think in something that happens in a long period of time, like the things that happens from my first job to my deffinetly job. But actually, evolution is in everywhere, it can be in avery little step in a creative process. To decide a new idea or a new change in a concret design is evolution.