Retrieval, Memory & Knowledge
Hybrid Search
Combining keyword search and semantic search for more accurate retrieval.
Definition
Neither keyword search nor semantic search is perfect on its own. Keyword search misses relevant results that use different vocabulary; semantic search can sometimes return results that are thematically related but don't contain the specific terms needed. Hybrid search combines both approaches, using a weighting to blend keyword and semantic results. Most production RAG systems use hybrid search because it produces more reliable, higher-quality retrieval than either approach alone.
Related Terms
Semantic Search
Searching by meaning and intent rather than exact keyword matching.
RAG (Retrieval-Augmented Generation)
Combining an LLM with a search system so it can look up current or specific information before responding.
Vector Database
A database that stores embeddings and allows searching by meaning rather than keywords.
Heard enough terminology — ready to talk outcomes?
We translate AI concepts into measurable business results. No upfront fees — you pay only when independently verified results are delivered.
Disclaimer
This definition is provided for educational and informational purposes only. It represents a general explanation of a technical concept and does not constitute professional, technical, or investment advice. Artificial intelligence is a rapidly evolving field; terminology, techniques, and capabilities change frequently. Coaley Peak Ltd makes no warranty as to the accuracy, completeness, or currency of the information provided. Nothing on this page should be relied upon as the sole basis for commercial, technical, legal, or investment decisions without independent professional advice.
Document reference: ISO_webpage_knowledge-base_glossary_v1
Last modified: 29 March 2026
Knowledge Base·Retrieval, Memory & Knowledge·Hybrid Search