| ALTALTISSIMOS | • ALTALTISSIMO n. (Italian) very very high. |
| GLOSSOLALISTS | • glossolalists n. Plural of glossolalist. • GLOSSOLALIST n. one who studies glossolalia. |
| GLOSSOLOGISTS | • glossologists n. Plural of glossologist. • GLOSSOLOGIST n. a student of glossology. |
| ILLUSTRISSIMO | • ILLUSTRISSIMO adj. (Italian) most illustrious, esp. as belonging to the Italian aristocracy. |
| LOATHLINESSES | • LOATHLINESS n. the state of being loathly. |
| POSTCLASSICAL | • postclassical adj. After the classical era (but sometimes before the medieval). • POSTCLASSICAL adj. of or relating to a period (as in art, literature, or civilization) following a classical one, also POSTCLASSIC. |
| SELENOLOGISTS | • selenologists n. Plural of selenologist. • SELENOLOGIST n. one who studies the moon. |
| SLIPSLOPPIEST | • SLIPSLOPPY adj. sloppy, nonsensical. |
| SNOLLYGOSTERS | • snollygosters n. Plural of snollygoster. • SNOLLYGOSTER n. a shrewd unprincipled person, esp. a dishonest politician. |
| SPELEOLOGISTS | • speleologists n. Plural of speleologist. • SPELEOLOGIST n. one who explores caves. |
| STILBOESTROLS | • stilboestrols n. Plural of stilboestrol. • STILBOESTROL n. a synthetic oestrogen, also STILBESTROL. |
| TESSELLATIONS | • tessellations n. Plural of tessellation. • TESSELLATION n. fitting together exactly; leaving no spaces. |
| TOILFULNESSES | • TOILFULNESS n. the state of being toilful. |
| TONSILLITISES | • TONSILLITIS n. inflammation of the tonsils, also TONSILITIS. |
| TROLLEYBUSSES | • trolleybusses n. Plural of trolleybus. • trolley␣busses n. Plural of trolley bus. • TROLLEYBUS n. a bus running on an overhead electric wire. |