quarter-turn stair

18 LETTERS · STARTS WITH Q

quarter-turn stair is a valid 18-letter word worth 25 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

Q10U1A1R1T1E1R1-0T1U1R1N1S1T1A1I1R1

10 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does quarter-turn stair mean?