# Vector database

> A vector database stores embeddings and finds the ones closest to a question quickly, which is how a chatbot finds the right passage in your documents.

Canonical: https://heykiko.io/glossary/vector-database
Last updated: 2026-11-05

## What it means

Also called vector store, vector index.

It's the search engine behind retrieval-augmented generation: instead of matching keywords, it matches meaning.

## In HeyKiko

HeyKiko's search index of your knowledge is kept in the United States; your files are stored in Singapore.

## Related

- [Embeddings](https://heykiko.io/glossary/embeddings)
- [RAG (retrieval-augmented generation)](https://heykiko.io/glossary/rag)
- [Security and data](https://heykiko.io/security)
- [Full glossary](https://heykiko.io/glossary)