How do you define a word?
In simple terms, a word is a graphic representation of a concept.
How would you define a concept?
Concepts are virtual representations of images that are based on facts.
For example, you can speak Creole with me and I will give you words you do not know, words I make up, and you will not know what they mean. The definitions can be found! As an example, if I tell you that I created a word which I called « Zopher ».