What does "NLP" mean?

NLP:

Distilled from Wikipedia: Natural Language Processing [NLP] is a subset of linguistics, computer science and artificial intelligence that is concerned with the interactions between computers and human language; in particular how to program computers to process and analyze large amounts of natural language data. The goal is a computer capable of "understanding" the nuances of the content of documents. Not to be confused with Neuro-Linguistic Programming.

 Wikipedia: Natural Language Processing