Based on the output of the function for the given inputs (apple, banana, cat, dog, elephant), it seems that the function is giving a value between 0 and 1 for each word. 

The values returned by the function are representation of how strongly each word is associated with a particular concept. A value closer to 1 indicates a higher association with the concept, while a value closer to 0 indicates a lower association.

In this case, the description of the function could be:

[DESCRIPTION]: The function measures the association of a word with a particular concept. Higher values indicate stronger association with the concept, while lower values indicate weaker association.