About EpochLex

What the name means

EpochLex combines epoch with lexicon. The name reflects the idea behind the project: documenting the vocabulary emerging during an AI-shaped era, not only defining the technology itself. Dictionary of the AI Era remains the descriptor that explains what the project is here to document.

Why a dictionary for the AI era?

AI is producing more than new software. It is producing new language. Some terms begin in research papers or engineering teams. Others emerge in workplaces, product design, governance, online communities, or internet culture. Familiar technical words can also take on new meanings as AI changes how people work and communicate.

EpochLex exists to make that language easier to understand while it is still evolving.

What you can do here

EpochLex is designed to be explored rather than read from beginning to end. You can:

• search the full dictionary;
• browse terms alphabetically;
• explore the four editorial categories;
• switch between list and grid views;
• hear pronunciations when your browser supports speech synthesis;
• open a dedicated page for every term;
• read origin context, history, aliases, sources, and research status;
• follow related terms to continue exploring a concept.

Browse the dictionary →

Explore by category →

How EpochLex started

The idea began after seeing the term Meat Proxy in a post on X. The definition was funny, but it also highlighted something larger: all sorts of new language already existed around AI, and more of it was being created all the time.

The first impulse was simply to catalog that language for personal reference. ChatGPT was used to help generate an initial list of AI-related terms and definitions. But a growing Word document or static list did not feel like the right way to use the information, so the idea became a searchable dictionary instead.

Then curiosity pushed the project further. It was not enough to know what a term meant. The project began asking where terms came from, when they appeared, whether someone actually coined them, how they became popular, and how their meanings changed. That curiosity became the provenance and sourcing layer behind each entry.

The project began under the working name Dictionary of the AI Era and later used AILex as its first short-form brand. Before a custom domain or repository rename was committed, the public identity evolved again into EpochLex. The dictionary itself, its research, and its development experiment are the same continuous project.

More than a definition

Every published entry has a matching researched provenance record. EpochLex separates evidence for what a term means from evidence about where it came from. A source that explains a concept does not automatically prove who coined the term or when it first appeared.

That is why some entries have precise historical notes while others deliberately leave an earliest-use claim unresolved. The goal is to be useful without pretending the evidence is stronger than it is.

See how EpochLex researches and reviews entries →

A living reference

EpochLex is intentionally not treated as finished. New terminology appears, meanings change, stronger sources are found, and terms can move from emerging language into established usage. Definitions, categories, statuses, relationships, and histories may be revised as the evidence changes.

The website is the continuously updated EpochLex Living Dictionary. Named annual editions provide frozen historical snapshots for citation and comparison.

Built in the AI era, using AI

After the dictionary idea already existed, another thought shaped how it would be built: “Wouldn't it be cool if the Dictionary of the AI Era was actually built using AI?”

EpochLex is therefore also an open-source, human-directed AI experiment. AI assists with parts of research, design, coding, documentation, QA, and implementation, while human judgment remains responsible for editorial decisions, source evaluation, testing, and publication.

The development model is Vibe coded · Human-directed · AI-assisted · Human-reviewed.

Readers who want the full project history, architecture, contribution guidance, or AI-development philosophy can explore the EpochLex repository on GitHub.

Licensing

EpochLex is open source. Website and application code are licensed under the MIT License. Original dictionary definitions, examples, term histories, editorial notes, and related reference content are licensed under Creative Commons Attribution 4.0 International unless otherwise noted.