5 letters · 12 points in Scrabble
noun a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction
originBorrowed from Spanish rumbo or Portuguese rumo, from Latin rhombus, from Ancient Greek ῥόμβος (rhómbos). Doublet of rhomb and rhombus.
Etymology from Wiktionary, CC BY-SA 3.0