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guest-rope

American  
[gest-rohp] / ˈgɛstˌroʊp /
Or guest rope

noun

Nautical.
  1. a rope suspended from the side of a vessel or a boom as an object to which other vessels can moor, or to afford a hold for persons in such vessels.

  2. a line sent out from a vessel to a fixed object or a buoy or anchor to help the vessel in warping.

  3. a line, in addition to the towrope, to steady a boat in tow.


guest rope British  

noun

  1. nautical any line sent or trailed over the side of a vessel as a convenience for boats drawing alongside, as an aid in warping or towing, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of guest-rope

1615–25; guest < ? + rope