| AUTOCROSSES | • autocrosses v. Third-person singular simple present indicative form of autocross. • AUTOCROSS n. motor racing round a rough grass track. |
| BOOSTERISMS | • boosterisms n. Plural of boosterism. • BOOSTERISM n. the practice of boosting or promoting a product or idea. |
| DOCTORESSES | • doctoresses n. Plural of doctoress. • DOCTORESS n. a female doctor, also DOCTRESS. |
| MOTOCROSSES | • motocrosses n. Plural of motocross. • MOTOCROSS n. a form of scrambling, motorcycle racing round a rough circuit. |
| MOTORBUSSES | • motorbusses n. Plural of motorbus. • MOTORBUS n. a bus driven by an internal-combustion engine. |
| OSTENSORIES | • ostensories n. Plural of ostensory. • OSTENSORY n. a container for holding consecrated Communion wafers. |
| POSTPERSONS | • postpersons n. Plural of postperson. • POSTPERSON n. a postman or postwoman. |
| RIOTOUSNESS | • riotousness n. The state or condition of being riotous. • RIOTOUSNESS n. the state of being riotous. |
| ROOTINESSES | • ROOTINESS n. the state of being rooty. |
| SCOOTERISTS | • scooterists n. Plural of scooterist. • SCOOTERIST n. one who rides a scooter. |
| SEROLOGISTS | • serologists n. Plural of serologist. • SEROLOGIST n. one who studies sera. |
| SISTERHOODS | • sisterhoods n. Plural of sisterhood. • SISTERHOOD n. the state of being a sister. |
| SITOSTEROLS | • sitosterols n. Plural of sitosterol. • SITOSTEROL n. any of several sterols widespread in plant products. |
| SOOTHSAYERS | • soothsayers n. Plural of soothsayer. • SOOTHSAYER n. a person who predicts the future by magical, intuitive, or more rational means. |
| STOCKHORSES | • STOCKHORSE n. (Australian) a horse trained to work with sheep and cattle. |
| STONEHORSES | • stonehorses n. Plural of stonehorse. • stone-horses n. Plural of stone-horse. • STONEHORSE n. a stallion. |
| STOREHOUSES | • storehouses n. Plural of storehouse. • STOREHOUSE n. a place where food and other stores are kept. |