Bowline (noun)

1. A knot used in boating and sailing to form a loop that will not slip or tighten under load.
2. A loop of rope used in boating and sailing to secure a line to a cleat or around a post.

Origin:

The word 'bowline' originates from the middle english word 'bolane' meaning a rope used in sailing.

Examples:

1. The sailor expertly tied a bowline around the cleat, securing the line and ensuring that it wouldn't slip.
2. The bowline was a crucial knot for the sailor, used for everything from tying off the mooring line to hoisting the sails.
3. The bowline was a reliable knot, widely used and trusted by sailors for centuries.
4. The bowline was easy to tie and untie, making it a useful knot for both novice and experienced sailors.
5. The bowline was a versatile knot, used in a variety of boating and sailing applications, from securing lines to tying off fenders.