Investing and trading have some similarities and often it's used interchangeably. However, there are some important differences and you must know about them before you start either, so you know which is more suitable for you.
If you new to the world of trading and investing, or you don't have much time; then investing is probably the best option.
However, if you have a good understanding of the financial markets and perhaps you have experience with investing, and/or you have the time to learn how to trade and you want a regular income; then trading could be a possible path for you.