| COCHAIRPERSONS | • cochairpersons n. Plural of cochairperson. • COCHAIRPERSON n. a joint chairmen or chairwoman. |
| COPARTNERSHIPS | • copartnerships n. Plural of copartnership. • COPARTNERSHIP n. the state of being a copartner. |
| DRAUGHTSPERSON | • draughtsperson n. Alternative spelling of draftsperson. • DRAUGHTSPERSON n. a gender-neutral term for draughtsman or draughtswoman. |
| HYPERALERTNESS | • hyperalertness n. The condition of being hyperalert. |
| HYPERAWARENESS | • hyperawareness n. The state of being hyperaware, or extremely sensitive to stimuli. • HYPERAWARENESS n. the state of being hyperaware. |
| HYPERURBANISMS | • hyperurbanisms n. Plural of hyperurbanism. • HYPERURBANISM n. use of hypercorrect forms in language. |
| LIBRARIANSHIPS | • librarianships n. Plural of librarianship. • LIBRARIANSHIP n. the office of librarian. |
| MARSIPOBRANCHS | • marsipobranchs n. Plural of marsipobranch. • MARSIPOBRANCH n. a member of the Marsipobranchi, the Cyclostomata. |
| PANARTHRITISES | • PANARTHRITIS n. arthritis of all joints of body, or of the whole of one joint. |
| PARANTHROPUSES | • PARANTHROPUS n. an Olduvai anthropoid ape. |
| PARTHENOSPORES | • PARTHENOSPORE n. a thick-walled spore produced by parthenogenesis in certain algae and fungi. |
| SELENOGRAPHERS | • selenographers n. Plural of selenographer. • SELENOGRAPHER n. one who maps the moon, also SELENOGRAPHIST. |
| SHARECROPPINGS | • SHARECROPPING n. a kind of tenant farming where the farmer supplies, in lieu of rent, a share of the crop. |
| SPORTFISHERMAN | • sportfisherman n. A person who participates in sportfishing. • sportfisherman n. A boat intended for sportfishing. • SPORTFISHERMAN n. a motorboat equipped for sportfishing. |
| URANOGRAPHISTS | • URANOGRAPHIST n. one who practises uranography, descriptive astronomy and mapping. |
| WEATHERPERSONS | • weatherpersons n. Plural of weatherperson. • WEATHERPERSON n. a person who reports and forecasts the weather. |