The best way to explain it is to make a good statement rather than making a long and very technical definition that is hard for the reader to understand. So here is my explanation " All trading is an investment but not all investment is trading". It simply means that even trading itself is considered as investment. But investment has many forms aside from just trading, it could be investment in networking, loans, business and many more.
The difference between trading and investing is that investing is where you give your money to a particular campaign. Youre buying some shares while in trading you will buy tokens or any cryptotoken and then youre the one who will sell it when the price is big.