/ sæʃ; NAmE / noun
1.
a long strip of cloth worn around the waist or over one shoulder, especially as part of a uniform
2.
either of a pair of windows, one above the other, that are opened and closed by sliding them up and down inside the frame
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WORD ORIGIN
sense 1 late 16th cent. (earlier as shash , denoting fine fabric twisted round the head as a turban): from Arabic šāš muslin, turban.
sense 2 late 17th cent.: alteration of chassis , interpreted as plural.