a knot consisting of two overhand knots turned opposite ways
Also called: square knot
reef knot in American English
a square knot used for reefing sails
reef knot in American English
noun
Nautical
a square knot used in reefing sails
Also called: flat knot
Word origin
[1835–45]This word is first recorded in the period 1835–45. Other words that entered Englishat around the same time include: ecumenical, faceplate, grandstand, hot plate, serial
Examples of 'reef knot' in a sentence
reef knot
I am still trying to think of an excuse when he suddenly ties me in a reef knot.