AI Chatbot Glossary
What Is Natural Language Understanding (NLU)?
NLU is a subset of NLP focused on machine reading comprehension — understanding meaning behind user messages, not just keyword matching.
Definition
A subset of NLP that focuses specifically on machine reading comprehension, enabling chatbots to understand the meaning behind user messages rather than just matching keywords. NLU handles nuances like synonyms, context, typos, and implied meaning.
Why Natural Language Understanding (NLU) Matters for AI Chatbots
NLU is what makes "can I get my money back?" and "how do I return this?" and "refund policy" all route to the same answer. Older chatbots needed you to enumerate every variant; modern LLM-backed NLU handles the variation for free.
Related Terms
Natural Language Processing (NLP)
NLP is a field of AI focused on enabling computers to understand, interpret, and generate human language — powering chatbot capabilities like intent recognition and entity extraction.
Intent Recognition
Intent recognition is the AI capability of identifying what a user wants to accomplish from their message — critical for routing conversations correctly.
Query Understanding
Query understanding is the AI step of interpreting what a user is asking — even when vague, misspelled, or phrased with slang — via semantic search plus language models.
Try Chatonbo free
Deploy an AI chatbot on your website in under 5 minutes — no credit card required.
Get Started Free