The word "brails" can be defined as ropes or lines used to control the corners of sails and adjust their angle to the wind. There are several synonyms for the word "brails" which include "sheets", "halyards", "lines" and "ropes". The term "sheets" is commonly used to refer to the ropes attached to the lower corners of a sail while "halyards" refer to the ropes used to raise or lower a sail. Additionally, "lines" is a general term used to describe any type of rope or cordage used in sailing. "Ropes" are also commonly used to refer to the general tools and equipment used in sailing, including those used to control the sail.