Someone with a bit of practice with the Munsell system can remember the difference between, say, 2.5 BG 4/8 and 5 BG 6/6 (the latter is slightly more blue, a bit lighter, and not as saturated), and can both accurately judge the color coordinates on sight and imagine what color some coordinates will represent. But both are just going to be called "teal" or "blue–green" if you have to reduce it to a single category (or maybe even just "green").
Unfortunately paint companies and others don't just tell consumers meaningful, easy to learn, and easy to compare coordinates like this, but instead make up thousands of arbitrary names so you need to describe this color to the paint store as "faded peacock" or some similar nonsense, and there's no way to tell without looking at the swatch book what the relation might be between "faded peacock", "cracked robin egg", "Aztec turquoise", and "vibrant iceberg".
Unfortunately paint companies and others don't just tell consumers meaningful, easy to learn, and easy to compare coordinates like this, but instead make up thousands of arbitrary names so you need to describe this color to the paint store as "faded peacock" or some similar nonsense, and there's no way to tell without looking at the swatch book what the relation might be between "faded peacock", "cracked robin egg", "Aztec turquoise", and "vibrant iceberg".