S: (n) rhumb line, rhumb, loxodrome (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)
S: (n) side (a line segment forming part of the perimeter of a plane figure) "the hypotenuse of a right triangle is always the longest side"
S: (n) waterline, water line, water level (a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship)
S: (n) path, track, course (a line or route along which something travels or moves) "the hurricane demolished houses in its path"; "the track of an animal"; "the course of the river"
S: (n) line of force, field line (an imaginary line in a field of force; direction of the line at any point is the direction of the force at that point)
S: (n) parallel ((mathematics) one of a set of parallel geometric figures (parallel lines or planes)) "parallels never meet"
Verb
S: (v) parallel (be parallel to) "Their roles are paralleled by ours"
S: (v) parallel, collimate (make or place parallel to something) "They paralleled the ditch to the highway"
S: (v) twin, duplicate, parallel (duplicate or match) "The polished surface twinned his face and chest in reverse"
Adjective
S: (adj) parallel (being everywhere equidistant and not intersecting) "parallel lines never converge"; "concentric circles are parallel"; "dancers in two parallel rows"
S: (adj) parallel (of or relating to the simultaneous performance of multiple operations) "parallel processing"