Definitions

1. verb

to loosen or untie (something, especially a rope or cord)

“She had to lowse the sail to adjust it for better winds.”

2. verb

to make (something) loose or untied

“The storm caused the mooring to lowse, allowing the boat to drift away.”

3. noun

the act of loosening or untying

“The lowse of the sail was a crucial maneuver in the sailing competition.”