orbiter

noun 0.585

orbit

noun 0.561

armillary sphere

noun 0.551

ordo

noun 0.544

oriel

noun 0.544

orb

noun 0.540

horary

noun 0.538

oratory

noun 0.532

orangery

noun 0.530

observatory

noun 0.528

oration

noun 0.527

astrolabe

noun 0.525

gyratory

noun 0.518

horologist

noun 0.518

orebody

noun 0.515

orbital

noun 0.514

horology

noun 0.514

ord

noun 0.512

oracle

noun 0.511

wormery

noun 0.511

orris

noun 0.511

hurdy-gurdy

noun 0.506

planetarium

noun 0.505

horosphere

noun 0.504

ora

noun 0.504

planetoid

noun 0.504

oratorio

noun 0.501