| AUTOMORPHISMS | • automorphisms n. Plural of automorphism. • AUTOMORPHISM n. ascription to others of one's own characteristics. |
| BREASTSUMMERS | • breastsummers n. Plural of breastsummer. • BREASTSUMMER n. a beam supporting the front of a building, also BRESSUMMER. |
| COMMUNALISERS | • COMMUNALISER n. one who communalises, also COMMUNALIZER. |
| DARMSTADTIUMS | • DARMSTADTIUM n. an artificially produced radioactive element. |
| HARMONIUMISTS | • harmoniumists n. Plural of harmoniumist. • HARMONIUMIST n. one who plays the harmonium. |
| MERCURIALISMS | • MERCURIALISM n. a morbid condition due to mercury. |
| MISDEMEANOURS | • misdemeanours n. Plural of misdemeanour. • MISDEMEANOUR n. in UK formerly, a crime less serious than a felony, also MISDEMEANOR. |
| PRASEODYMIUMS | • praseodymiums n. Plural of praseodymium. • PRASEODYMIUM n. a chemical element, a metal with green salts, isolated from the once-supposed element didymium. |
| PROGYMNASIUMS | • PROGYMNASIUM n. in Germany, a gymnasium for pupils up to age 16 only, at which university entrance qualifications are not obtainable. |
| SEMIMENSTRUAL | • semimenstrual adj. Half-monthly. • SEMIMENSTRUAL adj. half-monthly. |
| SHAMATEURISMS | • SHAMATEURISM n. the retention of amateur status while receiving payment for playing or competing. |
| SUMMARINESSES | • SUMMARINESS n. the state of being summary. |
| SUMMARISATION | • summarisation n. (Countable) The act of summarising. • summarisation n. (Uncountable) The process of summarising. • summarisation n. (Countable) A summary; the result of summarising. |
| SUMMERSAULTED | • summersaulted v. Simple past tense and past participle of summersault. • SUMMERSAULT v. to perform a leap in which a person turns his heels over his head and lights upon his feet; a turning end over end, also SOMERSAULT, SOMERSET, SUMMERSET. |
| TRIUMPHALISMS | • triumphalisms n. Plural of triumphalism. • TRIUMPHALISM n. belief in the superiority of one particular religious creed. |