via WordNet, Princeton University
over
o'hara, oar, or, ore, oreo, oriya, orr, orrery
via soundex() Hash Matches
O'er on Wikipedia
O'er on Wiktionary
O'er on Google
Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.
become horny and impregnated with keratin
balkan, gulf states, double gloucester, caudated, fallen