Scrabble dictionary, Word with Friends, search for words, check words

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6 letter words:

firsts9, frists9,

5 letter words:

first8, fists8, frist8, frits8, rifts8, sifts8, stirs5,

4 letter words:

firs7, fist7, fits7, fris7, frit7, rifs7, rift7, sift7, rits4, sirs4, sist4, sits4, sris4, stir4,

3 letter words:

fir6, fit6, ifs6, rif6, sif6, its3, rit3, sir3, sis3, sit3, sri3, tis3,

2 letter words:

if5, is2, it2, si2, st2, ti2,