Sure. It's an ancient study of academic interest in Hinduism, Buddhism, Daoism etc. They all have sophisticated methodologies for evaluating enlightenment in individuals or even texts.
It's not, by a mile.
Feel free to correct me and kindly point out the agreed definition between the practices you mention.
I think it's something like a realization allowing you to live in greater harmony with your circumstances and community.
It's all the definitions in this discussion, but also including "the description is not the described".