| EXCELSIORS | • EXCELSIOR n. slender, curved wood shavings used esp. for packing. |
| EXCLOSURES | • exclosures n. Plural of exclosure. • EXCLOSURE n. an area shut off from intrusion. |
| EXCLUSIONS | • exclusions n. Plural of exclusion. • EXCLUSION n. the act of excluding. |
| EXPLOSIONS | • explosions n. Plural of explosion. • EXPLOSION n. the act of exploding. |
| EXPLOSIVES | • explosives n. Plural of explosive. • EXPLOSIVE n. something that will explode. |
| EXPULSIONS | • expulsions n. Plural of expulsion. • EXPULSION n. the act of expelling or state of being expelled. |
| LOOSEBOXES | • looseboxes n. Plural of loosebox. • loose-boxes n. Plural of loose-box. • loose␣boxes n. Plural of loose box. |
| OXYGENLESS | • oxygenless adj. Lacking oxygen. • oxygenless adj. (Of mountain climbing) not assisted with oxygen. • OXYGENLESS adj. without oxygen. |
| PROLIXNESS | • prolixness n. Prolixity. • PROLIXNESS n. the state of being prolix. |
| SAXICOLOUS | • saxicolous adj. (Biology) Growing on, or living among rocks or stones. • SAXICOLOUS adj. inhabiting or growing among rocks, also SAXICOLINE. |
| SEXAHOLICS | • sexaholics n. Plural of sexaholic. • SEXAHOLIC n. someone addicted to sex. |
| SEXOLOGIES | • sexologies n. Plural of sexology. • SEXOLOGY n. the study of human sexual behaviour. |
| SEXOLOGIST | • sexologist n. Someone who studies, or is an expert in, sex and sexuality. • SEXOLOGIST n. an expert on sexual behaviour. |
| SMALLPOXES | • smallpoxes n. Plural of smallpox. • SMALLPOX n. a virus disease. |
| SPORTSPLEX | • sportsplex n. (US) A complex offering sporting facilities. |
| SULFOXIDES | • sulfoxides n. Plural of sulfoxide. • SULFOXIDE n. any of a class of carbon compounds featuring sulphur, also SULPHOXIDE. |
| XENOBLASTS | • xenoblasts n. Plural of xenoblast. • XENOBLAST n. a type of mineral deposit. |
| XENOGLOSSY | • xenoglossy n. Knowledge of a language one has never learned. • xenoglossy n. Glossolalia. • XENOGLOSSY n. a person's knowledge of a language never studied, also XENOGLOSSIA. |