It might be a better idea to organize words around senses and anything related to the animal inherent experiences.
This list of words should only contain concepts that have a direct experiential relationship with the world.
For example, the word "Jump" refers to the action of jumping that a human may do with their body. This word does not depend on any other abstract concept rather then the experience of jumping.
You can create a pull request adding words and their descriptions.
How many words does a child need to communicate in order to survive? How many does an adult need?
What does a baby need to survive?
What does a kid need to survive?
What does an adult need to survive?
What do they need to communicate to survive?
The thing is, our human experience is so complex, vast and detailed that arriving to essentially a digital clone would be a task with a duration of multiple lifetimes. A generational project.
Let's look at the essential words. Here's an example: https://www.smart-words.org/500-most-commonly-used-english-words.html