Unfortunately, the various packages (e.g.
wbritish-small, …) don't follow a pattern so
apt-get install words-\*
or similar will not work. Typing
/usr/share/dict into the search box of Software Center appears to yield all the wordlists, but I don't know if that is exhaustive.
If you want spell checking without the wordlists,
sudo apt-get install aspell-\*
will pull in the (larger set) of spell checkers which work on a larger set of languages but cannot yield the wordlist used to compile them.
Be forewarned, given the way the wordlists were generated (cf. Steve Johnson CACM v28 1985) from words and proper nouns actually encountered in documents, the extra words might not be obviously jargon or proper to a non-native speaker)