Clone
A copy of a repository downloaded onto a developer’s own computer, with the full history attached.
What it tells you about a developer
Clone is routine vocabulary rather than a skill, so it carries no signal by itself. It matters because it explains why a developer’s copy and the shared one drift apart, which is what branches and merges exist to manage.
Code lives in a repository on a service like GitHub, and a developer cannot work on it there. Cloning downloads the whole project, including every past change, onto their machine. They edit it there, then send finished work back. Cloning is the first thing a developer does on their first day, and it takes seconds.