A specific organism can only have one scientifically accepted name, which is called its scientific name or binomial name.

Here's why:

* Linnaeus's system: Carl Linnaeus developed the system of binomial nomenclature, which uses two words (genus and species) to uniquely identify each organism. This system brings order and clarity to the classification of life.

* International Code of Nomenclature: This set of rules governs the naming of organisms. It ensures that each species has only one valid name, preventing confusion.

* Exceptions: There may be some rare cases where multiple names have been used historically for the same organism. However, over time, scientific consensus usually leads to one name being accepted as the valid scientific name.

For example, the scientific name for humans is Homo sapiens. Even though humans have various common names (e.g., "human," "man," "woman," etc.), the scientific name is always Homo sapiens.