Keystone
A keystone is the stone at the top center of an arch. It holds all the other stones in place, which is why it is called the keystone. Keystones are often decorated quite elaborately.
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Rhymes with Keystone
Alone, Atone, Bemoan, Blown, Bone, Brimstone, Cellphone, Clone, Cobblestones, Cologne, Condone, Cone, Crone, Cyclone, Disown, Drone, Flown, Freestone, Gramophone, Groan, Grown, Headphones, Herringbone, Homegrown, Intone, Known, Limestone, Loan, Lone, Microphone, Moan, Mobile telephone, Moonstone, Mown, Overblown, Overgrown, Own, Phone, Pine cone, Postpone, Prone, Roan, Sandstone, Saxophone, Sewn, Shown, Soapstone, Sown, Stone, Sunstone, Telephone, Throne, Thrown, Tone, Traffic cone, Trombone, Unknown, Xylophone, Zone.
