What is Interpreted language
A language executed line by line as it runs. Python, JavaScript, Ruby, and PHP work this way.
In plain terms
Interpreted languages make writing and changing code fast, because a developer sees the result immediately. That speed is why they dominate web development, automation, and data work. Modern practice adds tooling like TypeScript's type checker to recover the early error-catching that compilation provides.
What it tells you about a developer
Interpreted-language depth maps to web, data, and product engineering. It carries no seniority reading on its own, so look at what they built with it.