Third-person singular simple present indicative form of brail.(verb)
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Use "brails" in a sentence
"With the brails they could shorten sail in a brisk wind."
"There was no boom, the rope brails holding the top of the sail fastened to a permanent yard, lines sweeping fore and aft to the overhanging stern, a double steering oar."
"The absence of a boom; the brails or ropes used to lower and raise sail hang from a fixed yard."