emacs & icicles: auto-completion from a dictionary?

I just installed icicles with emacs, and so far I am liking it a lot. I'm not entirely sure if this is possible, but I would like to implement (or use, if it already exists) a feature in icicles that would auto-complete words from an English dictionary.

So, if I'm writing something and need a word that rhymes with floor, I can type in 开发者_运维百科*or, or even better, for alliteration, type in flo* and have it return all the words from the dictionary that start with flo

Questions:

1. Does something like this exist?

2. If it does not exist, what would be the best way to go about this? Should I somehow hook into aspell? Or just index a long file of words?

EDIT: I suppose I am looking for something like synomyms.el, but with a dictionary. See http://www.emacswiki.org/emacs/Synonyms

This can be achieved with icicles and synonyms.el, for the most part.

use M-x synonyms RET word-or-part-of-word S-TAB and it will match words in the thesaurus and display them in a buffer.