Longman Dictionary of Contemporary English homepage

reef knot

noun
     
reef knot [countable] especially British English
a double knot that cannot come undone easily [= square knot American English]

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary