There’s no single language called “full-stack,” but full-stack development usually involves using multiple languages and technologies together to build both the front end and back end of an application.

Common languages used in full-stack development:
Front-end (client side):
HTML (structure)

CSS (style)

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JavaScript (interactivity) — often with frameworks like React, Angular, or Vue.js

Back-end (server side):
JavaScript (Node.js)

Python (Django, Flask)

Ruby (Ruby on Rails)

Java (Spring)

PHP (Laravel)

C# (.NET)

Databases:
SQL languages (MySQL, PostgreSQL)

NoSQL (MongoDB)

Summary:
Full-stack development means using a combination of languages and tools—usually JavaScript for front-end, plus one or more languages/frameworks for back-end and databases.

If you want, I can help you pick a specific full-stack language combo to learn!
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