What does “powerful” mean, when discussing programming languages?

Question

In the context of programming language discussion/comparison, what does the term \"power\" mean?

Does it have a well defined meaning? Even a poorly defined meaning?

Answer 1

The only meaningful way to describe "power" in a programming language is "can do what I require with the least amount of resources" where "resources" is defined as "whatever costs I'd rather not pay" and could, thus, be development time, CPU time, memory space, money, etc.

So basically the definition of "power" is purely subjective and rendered meaningless in any objective discussion.