sins is a form of:

Awning



noun
1.
(A covering of canvas, etc., to shelter from the sun's rays) រនាំងបាំងសាច (នៅលើមាត់បង្អួចឬទ្វារ)
ENGLISH MEANING
noun
1.
A rooflike cover, usually of canvas, extended over or before any place as a shelter from the sun, rain, or wind.
2.
That part of the poop deck which is continued forward beyond the bulkhead of the cabin.