The common shoelace knot is an example, being a reef knot with both ends slipped.
From the en.wikipedia.org
Only seven per cent said their children could really tie a reef knot.
From the telegraph.co.uk
The stars stand for truth and knowledge, the encircling rope for unity, and its reef knot, service.
From the en.wikipedia.org
The only knots which are required to make the lashings described here are the timber hitch, clove hitch and reef knot.
From the thisismoney.co.uk
Many roasts are tied with string prior to roasting, often using the reef knot or, in the more traditional sense, the packer's knot.
From the en.wikipedia.org
That and the reef knot.
From the guardian.co.uk
As soon as we'd finished eating our lunch, it was knot-tying time, learning how to do clove hitches, reef knots, figure eights, bowlines and more.
From the nzherald.co.nz
Couples tie the knot in its glistening white chapel and children learn in a small education centre how to protect and care for life on the offshore reef.