Is it possible to have an alias for the function name in Lisp?

Question

...just like packages do.

I use Emacs (maybe, it can offer some kind of solution).

For example (defun the-very-very-long-but-good-name () ...) is no

Answer 1

If it's all the typing which makes continual use of long names undesirable, then yes, emacs can help. Check out abbrev-mode. Also well thought-of in this context is hippie-expand.

If it's a question of readability, that's harder.