the largest kanji i have ever seen is 䯂, it means: large group of horses traveling in a line; numerous; very many; a kanji certainly may mean more than one thing, like the one above and 便, that means convinient, facility and excrement

I beg your pardon? Go here for answers: http://www.csse.monash.edu.au/~jwb/cgi-bin/wwwjdic.cgi?1B Enter the stroke count and tick the box for Jouyou kanji!