Is a stopper knot - it keeps the line from slipping out of things, such as a pulley.

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"The King of Knots!" Used to form a temporary loop in a line. (So you can throw it over a piling, for example.)

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For attaching a line to a cleat on the dock or on the boat.

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For tying two lines together or tying something down.

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To permanently and securely tie a line to something, such as a piling.

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To temporarily tie a line to something.
But be careful - it can come loose!

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