---
title: Embedding – AI Abstraction
canonical_url: https://ai-abstraction.com/glossary/embedding/
description: A numeric representation of a piece of text that captures its meaning, used behind the scenes so an AI agent can search by topic.
last_modified: 2026-07-29
---

Glossary

# Embedding

A numeric representation of a piece of text that captures its meaning, used behind the scenes so an AI agent can search by topic.

An embedding turns a sentence or document into a set of numbers that represent what it’s about. Two pieces of text with similar meaning end up with similar numbers, which is how a vector database can find a relevant answer even without an exact keyword match. This is one of the technical mechanics behind RAG.

[See every term in the glossary](/glossary/)

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