On another side of the spectrum, the minor currency pairs are those that do not associate the US dollar. These sets are also called crosses as the pairs consist of currencies crossed with another one which is not the USD.
A few examples of these would be:
The most traded currency pairs in this section are the euro, yen, or British pound.
In conclusion, the most important factor in telling major and minor currencies apart is if it includes the US Dollar. As mentioned above, the USD is the most exchanged currency in the world, and rightly so as US is the leading economy globally.
But there are more things to consider when choosing which currency pairs to trade and how they influence the movement of the assets. Knowing how to tell them apart is the first step in being one of the most successful forex traders of all time.