Yaw

Noun

 * 1) The rotation of an aircraft, ship, or missile about its vertical axis so as to cause the longitudinal axis of the aircraft, ship, or missile to deviate from the flight line or heading in its horizontal plane.
 * 2) The angle between the longitudinal axis of a projectile at any moment and the tangent to the trajectory in the corresponding point of flight of the projectile.
 * 3) An act of yawing.
 * 4)  A vessel's motion rotating about the vertical axis, so the bow yaws from side to side; a characteristic of unsteadiness.
 * 5) The extent of yawing, the rotation angle about the vertical axis
 * the yaw of an aircraft

Pronunciation

 * Homophones: (non-rhotic accents): yore, your, you're
 * Homophones: (non-rhotic accents): yore, your, you're
 * Homophones: (non-rhotic accents): yore, your, you're

Verb

 * 1)  To turn about the vertical axis while maintaining course.
 * 2)  To swerve off course to port or starboard.
 * 3)  To steer badly, zigzagging back and forth across the intended course of a boat; to go out of the line of course.

Thesaurus
aberrancy, aberration, about ship, back and fill, bank, bear away, bear off, bear to starboard, beat, beat about, bend, bias, box off, branching off, break, bring about, bring round, cant, cant round, cast, cast about, change course, change the heading, circuitousness, come about, corner, crab, crook, curve, declination, deflection, departure, detour, deviance, deviancy, deviation, deviousness, digression, dip, discursion, divagation, divarication, divergence, diversion, dogleg, double, double a point, drift, drift off course, drifting, drive, errantry, excursion, excursus, exorbitation, fall down, feather, fetch about, fetch away, fishtail, flounder, gape, go about, gybe, hairpin, heave, heave round, hobbyhorse, horizontal axis, indirection, jibe, jibe all standing, loop, lurch, make heavy weather, make leeway, miss stays, obliquity, pay off, pererration, pitch, pitch and toss, plow, plunge, ply, porpoise, pound, pull out, pull up, push down, put about, put back, rambling, rear, reel, rock, roll, round a point, sag, scend, sheer, shift, shifting, shifting course, shifting path, sideslip, skew, skid, slant, slew, spin, spiral, straying, stunt, swag, sway, sweep, swerve, swerving, swing, swing round, swing the stern, swinging, tack, throw about, tilt, tilter, toss, toss and tumble, tumble, turn, turn back, turning, twist, undulate, variation, veer, wallow, wandering, warp, wear, wear ship, welter, wind, yaw off, zigzag