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rhumb

American  
[ruhm, ruhmb] / rʌm, rʌmb /

noun

Navigation.
  1. rhumb line.

  2. a point of the compass.


rhumb British  
/ rʌm /

noun

  1. short for rhumb line

"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 rhumb

1570–80; < Spanish rumbo < Latin rhombus rhombus

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Before the days of GPS, sailors often charted nautical courses using what’s called a rhumb line.

From Slate • Jan. 21, 2026

The Mercator map is arguably the best for this purpose, because it straightens out spiraling rhumb lines, and that’s why it rose to dominance.

From Slate • Jan. 21, 2026

They are known for distinctive rhumb lines that radiate out from various points in the ocean in the direction of wind or compass points to help navigators plot their course.

From Los Angeles Times • Oct. 25, 2023

To ensure that every cartouche, sea monster and rhumb line remains vibrant, the men keep the Venetian blinds in their south-facing apartment drawn, as if for a permanent siesta.

From New York Times • Jan. 23, 2014

Hence rushed dhe Rhine and dhe Rhone, dhe Rhemi and Rheims, Rhoda and Rhodes; rhomb, rhumb, rheum, and rhubarb.

From A Minniature ov Inglish Orthoggraphy by Elphinston, James