| AMBROTYPES | • ambrotypes n. Plural of ambrotype. • AMBROTYPE n. a picture taken on a plate of prepared glass, in which the lights are represented in silver, and the shades are produced by a dark background visible through the un-silvered portions of the glass. |
| AMPHIBOLES | • amphiboles n. Plural of amphibole. • AMPHIBOLE n. any mineral of a group of dark-coloured, rock-forming silicates. |
| BROOMRAPES | • broomrapes n. Plural of broomrape. • broom-rapes n. Plural of broom-rape. • broom␣rapes n. Plural of broom rape. |
| EPILOBIUMS | • epilobiums n. Plural of epilobium. • EPILOBIUM n. a genus of plants that includes willowherb. |
| GOOSEBUMPS | • goosebumps n. Plural of goosebump. • goose␣bumps n. Plural of goose bump. |
| HOMOPHOBES | • homophobes n. Plural of homophobe. • HOMOPHOBE n. one who dislikes homosexuals. |
| IMPOSSIBLE | • impossible adj. Not possible; not able to be done or happen. • impossible adj. (Colloquial, of a person) Very difficult to deal with. • impossible adj. (Mathematics, dated) imaginary. |
| PENUMBROUS | • penumbrous adj. Partially shaded. • penumbrous adj. Vague; ill-defined; unclear. • PENUMBROUS adj. relating to penumbra, partial shade. |
| POSTBELLUM | • postbellum adj. Of the period following a war. • postbellum adj. (US) Of the period following the American Civil War, especially used in reference to the South. • post-bellum adj. Alternative spelling of postbellum. |
| PROBLEMIST | • problemist n. (Chess) One who composes chess problems for other players to attempt to solve. • PROBLEMIST n. one who sets problems. |
| PROEMBRYOS | • proembryos n. Plural of proembryo. • PROEMBRYO n. a group of cells formed in the dividing zygote, from which part the embryo arises. |
| SUBPROBLEM | • subproblem n. A problem whose solution contributes to the solution of a larger problem. • sub-problem n. Alternative spelling of subproblem. • SUBPROBLEM n. a subdivision of a problem. |
| SUPERBOMBS | • superbombs n. Plural of superbomb. • SUPERBOMB n. a very big bomb. |
| SUPERJUMBO | • superjumbo n. The largest passenger airliner, the Airbus A380. • SUPERJUMBO n. a very large airliner. |