| ASTROCOMPASSES | • astrocompasses n. Plural of astrocompass. • ASTROCOMPASS n. a navigational instrument for giving directional bearings from the centre of the earth to a particular star. |
| HEADMISTRESSES | • headmistresses n. Plural of headmistress. • HEADMISTRESS n. a woman heading the staff of a private school. |
| IMPRESSIONISTS | • impressionists n. Plural of impressionist. • IMPRESSIONIST n. an artist who practices or adheres to the theories of impressionism. |
| MASTERLINESSES | • MASTERLINESS n. the state of being masterly. |
| MOTHERLESSNESS | • motherlessness n. The state or condition of being motherless (not having a (living) mother). • MOTHERLESSNESS n. the state of being motherless. |
| MYSTERIOUSNESS | • mysteriousness n. The quality of being mysterious. • MYSTERIOUSNESS n. the state of being mysterious. |
| OVERASSESSMENT | • overassessment n. The assessment of a tax or charge at a higher value than the correct one. • overassessment n. Excessive assessment of an academic course, as by requiring too many pieces of work from each student. • OVERASSESSMENT n. excessive assessment. |
| POSTMISTRESSES | • postmistresses n. Plural of postmistress. • POSTMISTRESS n. a woman who is a postmaster. |
| RESYSTEMATISES | • RESYSTEMATISE v. to systematise again, also RESYSTEMATIZE. |
| SCHOOLMISTRESS | • schoolmistress n. A woman in charge of a school. • SCHOOLMISTRESS n. a female schoolmaster. |
| SEMPSTRESSINGS | • SEMPSTRESSING n. working as a sempstress. |
| SMOTHERINESSES | • SMOTHERINESS n. the state of being smothery, tending to smother. |
| SPORTSMANSHIPS | • sportsmanships n. Plural of sportsmanship. • SPORTSMANSHIP n. conduct (as fairness, respect for one's opponent, and graciousness in winning or losing) becoming to one participating in a sport. |
| STORMFULNESSES | • STORMFULNESS n. the state of being stormful, abounding with storms. |
| TASKMISTRESSES | • taskmistresses n. Plural of taskmistress. • TASKMISTRESS n. a woman who is a taskmaster. |
| TIMOROUSNESSES | • timorousnesses n. Plural of timorousness. • TIMOROUSNESS n. the quality of being timorous. |
| TIRESOMENESSES | • tiresomenesses n. Plural of tiresomeness. • TIRESOMENESS n. the state of being tiresome. |
| WORKMISTRESSES | • workmistresses n. Plural of workmistress. • WORKMISTRESS n. an expert (female) worker or craftsperson, overseer or employer. |