| COENAMORS | • COENAMOR v. to inflame with mutual love, also COENAMOUR. |
| COMMONERS | • commoners n. Plural of commoner. • COMMONER n. one of the common people. |
| CORNMOTHS | • CORNMOTH n. a moth of the clothes-moth genus. |
| CORNWORMS | • cornworms n. Plural of cornworm. • CORNWORM n. a corn weevil. |
| CORONIUMS | • CORONIUM n. the name given to a hypothetical element in the sun's corona showing spectral lines now known to be due to iron and nickel that have lost large numbers of electrons. |
| COSMOTRON | • cosmotron n. (Physics) A proton synchrotron. • COSMOTRON n. a large synchrotron used for accelerating protons to high energies. |
| CRAMPOONS | • crampoons n. Plural of crampoon. • CRAMPOON n. a device for raising heavy objects, also CRAMPET. |
| CROMORNAS | • cromornas n. Plural of cromorna. • CROMORNA n. (German) an ancient double-reed wind instrument, also CREMONA, CREMORNE, CROMORNE, CRUMHORN, KRUMHORN, KRUMMHORN. |
| CROMORNES | • cromornes n. Plural of cromorne. • CROMORNE n. (German) an ancient double-reed wind instrument, also CREMONA, CREMORNE, CROMORNA, CRUMHORN, KRUMHORN, KRUMMHORN. |
| MACAROONS | • macaroons n. Plural of macaroon. • MACAROON n. a sweet biscuit made with egg white and ground almonds or coconut. |
| MONGCORNS | • MONGCORN n. a mixed grain, esp. rye and wheat, aka maslin, also MUNGCORN. |
| MONOCARPS | • monocarps n. Plural of monocarp. • MONOCARP n. a plant that yields fruit only once before dying. |
| MONOCEROS | • monoceros n. (Obsolete) A unicorn. • monoceros n. (Obsolete) A narwhal. • Monoceros prop.n. (Astronomy) A winter constellation of the northern sky, said to resemble a unicorn. It lies amid the… |
| MONOCRATS | • monocrats n. Plural of monocrat. • MONOCRAT n. one who governs alone. |
| MONOCROPS | • monocrops n. Plural of monocrop. • MONOCROP v. to plant the same crop in the same field year after year. |
| MOONROCKS | • moonrocks n. Plural of moonrock. • moon␣rocks n. Plural of moon rock. • MOONROCK n. rock from the moon's surface. |
| NORMCORES | • NORMCORE n. a consciously unobtrusive style of dress. |
| ROMANESCO | • romanesco n. Alternative letter-case form of Romanesco. • Romanesco n. Romanesco broccoli, a light-green edible flower bud of certain forms of Brassica oleracea var. botrytis… • Romanesco prop.n. The dialect of the Italian language spoken in Rome. |