Brain Game: You Floss, But Do You Brush?
By BY

By changing one letter at a time to form different English words, and leaving all other letters in their original positions, convert the word FLOSS into the word BRUSH in seven (or fewer) steps. Good luck!
F L O S S _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _B R U S H
Here is a six-step SOLUTION.
A SIX-STEP SOLUTION:
FLOSS > GLOSS > GROSS > GRASS > BRASS > BRASH > BRUSH
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Did you come up with a different series of words? Feel free to post your solution in the comments. Thanks!