Software :: Won't Find Ordinal Number Symbols

I am aghast at the plethora of special characters available in OS X. However, I cannot seem to locate the ordinal number symbols. I would like to find a single character that would make a cardinal number be an ordinal number. For example, 3rd, 4th, 5th, etc. I would like them, obviously, to be superscript and small but not lilliputian. I would like these characters to be compatible with the Address Book and also with my iPhone. I tried typing it out in Microsoft Word but when I cut and pasted into address book it lost the superscript quality.