I am using babel (spanish) and want to change the name provided by \subsubsection (e.g. "Subsubsección" in Spanish) to something shorter (e.g. "Sección")
To that end, I tried to follow the post:
Change the word "Chapter" to something else
But the command
\addto\captionsspanish{\renewcommand{\subsubsectionname}{Sección}}
does not work... :(
Any help?

\documentclass{...}and ending with\end{document}. It is really hard to help when we don't know anything about the class you are using or relevant packages! – cfr Oct 19 '14 at 17:15