---
title: "The Ultimate AI Glossary: A Guide to Common Terms in 2026"
source: "TechCrunch：AI（RSS）"
source_tier: "t2"
url: "https://techcrunch.com/2026/07/03/artificial-intelligence-definition-glossary-hallucinations-guide-to-common-ai-terms/"
permalink: "https://feed.astralor.com/items/itm_0b0f10d07a908b9f1cffee99"
published: "2026-07-03T21:20:00.000Z"
score: 54
channel: "ai"
tags: ["AI Ethics","AI Slang","Large Language Models","Glossary"]
---

# The Ultimate AI Glossary: A Guide to Common Terms in 2026

## At a glance

This article compiles the most frequently used AI terms and slang in 2026, from 'hallucinations' to 'large models,' covering core concepts, technical nuances, and ethical considerations, helping beginners and practitioners quickly eliminate terminology blind spots and accurately understand key AI discussions.

## Key points

- Defines AI hallucinations and their causes, distinguishing factual from fabricated outputs.
- Explains core technical terms such as large language models (LLMs) and prompt engineering.
- Compares artificial general intelligence (AGI) with narrow AI to clarify common confusions.
- Introduces AI ethics and safety terms like alignment and red-teaming.

## Full text

The rise of AI has brought an avalanche of new terms and slang. Here is a glossary with definitions of some of the most important words and phrases you might encounter.

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