I believe the answer is: arbitrary
In human communication,the <span> sound of a </span>word<span> typically does not gives any hints about its meaning and this meaning would vary depending on the society where you live in.
It could on the other hand, reflected the emotion that felt by the speakers of the word when they are saying them.</span>
Answer:
The fundamental idea of the similitude theory is that what we acknowledge or display is valid if it coordinates with the way things actually are to the facts.