4 letter anagrams 18 results fifo firs four fris furs offs ours riff rori rous ruff soir sori sour suff sufi surf ufos
3 letter anagrams 37 results fir for fou fro frs fur iff ifs iof ios iou irs iso off orf ors osi ouf oui our rfs rio roi ros rus sir sou sri suf sui sur ufo ufs urf uri uro urs