Word of the Day

History

Every term we've featured, newest first — with a short note on why it was picked that day.

Featured today

Inference

Models

Thu, July 30, 2026

Inference is when an AI uses what it has already learned to answer a question, make a prediction, or complete a task.

Why it's featured — Featured because inference is the moment AI actually does its job. Once you know this word, every conversation about speed, cost, and quality of AI makes more sense.

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Previously featured

Showing 9 of 9

Wed, July 29, 2026
Category: Agents
Orchestrator
“OR-kes-tray-tor”
The AI manager that tells all the other AI agents what to do.
Why it was featured — Featured to show how several AI helpers work together. Like a job-site foreman, the orchestrator decides who does what and in what order.
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Newer: Inference Older: Agent
Tue, July 28, 2026
Category: Agents
Agent
“AY-jent”
An AI worker that has a specific job to do.
Why it was featured — Featured because 'agent' is the word people hear most in 2026 and use least correctly. It is the building block for everything else in Lesson #1.
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Newer: Orchestrator Older: Model
Mon, July 27, 2026
Category: Models
Model
“MOD-ul”
The AI's brain that has learned from lots of information.
Why it was featured — Featured because every AI tool you touch is powered by a model. Knowing what a model is (and isn't) keeps expectations realistic.
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Newer: Agent Older: Algorithm
Sun, July 26, 2026
Category: Fundamentals
Algorithm
“AL-go-rith-um”
A list of steps that tells a computer how to solve a problem.
Why it was featured — Featured as the plainest starting point in the whole library — a recipe of steps. It's the foundation the rest of the vocabulary is built on.
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Newer: Model Older: Vector Database
Sat, July 25, 2026
Category: Data
Vector Database
“VEK-tor DAY-ta-base”
A special kind of memory that helps AI quickly find information that is similar.
Why it was featured — Featured because it explains how AI 'remembers' your documents. It's the storage yard behind most business AI assistants.
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Newer: Algorithm Older: Calibration
Fri, July 24, 2026
Category: Fundamentals
Calibration
“kal-ih-BRAY-shun”
Adjusting an AI system so its answers become more accurate and reliable.
Why it was featured — Featured to talk about trust. Calibration is how you tell whether an AI's confidence should be believed.
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Newer: Vector Database Older: Multi-Agent System
Thu, July 23, 2026
Category: Agents
Multi-Agent System
“MUL-tee AY-jent SIS-tem”
Many AI agents working together while sharing information.
Why it was featured — Featured because real work is rarely done by one helper alone — it's a crew. This term shows how the crew is organized.
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Newer: Calibration Older: Autonomous Agent
Wed, July 22, 2026
Category: Agents
Autonomous Agent
“aw-TON-oh-mus AY-jent”
An AI agent that can complete tasks on its own within rules you give it.
Why it was featured — Featured to cover guardrails: how much freedom should an AI have before a human signs off?
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Newer: Multi-Agent System Older: Nano AI-Driven Ecosystem
Tue, July 21, 2026
Category: Agents
Nano AI-Driven Ecosystem
“NAN-oh A-I EE-koh-sis-tem”
A group of very small AI programs that each have one job, but they work together like a team to solve bigger problems.
Why it was featured — Featured as the big-picture term — many small AI pieces working together as one connected system.
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Newer: Autonomous Agent