y-axis

noun 0.760

z-direction

noun 0.752

direction

noun 0.648

z-axis

noun 0.634

directionality

noun 0.606

vertical

noun 0.586

vertical deflection

noun 0.580

horizontal

noun 0.565

verticality

noun 0.558

x-axis

noun 0.544

down

noun 0.540

horizontal plane

noun 0.537

third dimension

noun 0.534

downhill

noun 0.526

diagonal

noun 0.523

imaginary axis

noun 0.523

yonder

noun 0.515

horizontality

noun 0.509

dimensionality

noun 0.506

unidirectional

noun 0.504

y-intercept

noun 0.504

height

noun 0.504

slope

noun 0.500

dimension

noun 0.500