| DOUGHNUTTINGS | • DOUGHNUTTING n. the act of surrounding a speaker to give the impression of a packed house. |
| INVULTUATIONS | • INVULTUATION n. the stabbing of a wax image of person to be injured as form of witchcraft. |
| NANOSTRUCTURE | • nanostructure n. Any manufactured or natural structure having a scale between molecular and microscopic. |
| NONNUTRITIOUS | • nonnutritious adj. Not nutritious. • NONNUTRITIOUS adj. not nutritious. |
| NONSTRUCTURAL | • nonstructural adj. Not structural; not related to a structure. • NONSTRUCTURAL adj. not structural. |
| NONSTRUCTURED | • nonstructured adj. Not structured. • NONSTRUCTURED adj. not structured. |
| NOTOUNGULATES | • notoungulates n. Plural of notoungulate. • NOTOUNGULATE n. any one of an extinct group of herbivorous, hoofed mammals common in South America between the Palaeocene and Pleistocene eras, also NOTUNGULATE. |
| PUNCTULATIONS | • punctulations n. Plural of punctulation. • PUNCTULATION n. the state of having small spots. |
| PUNCTURATIONS | • puncturations n. Plural of puncturation. • PUNCTURATION n. being marked with punctures. |
| SUBLIEUTENANT | • sublieutenant n. Alternative form of sub-lieutenant. • sub-lieutenant n. (Military, navy) A commissioned officer of the navy whose rank is immediately below that of a lieutenant. • SUBLIEUTENANT n. a commissioned officer in the British navy ranking immediately below lieutenant. |
| SUPERNUTRIENT | • supernutrient n. Any nutrient supposed to confer remarkable health benefits. • SUPERNUTRIENT n. an exceptionally good nutrient. |
| UNCONSTRUCTED | • unconstructed adj. Not (yet) constructed. • UNCONSTRUCTED adj. manufactured without added material for padding, stiffening, or shape retention. |
| UNCONTENTIOUS | • uncontentious adj. Not contentious. • UNCONTENTIOUS adj. not contentious. |
| UNDULATIONIST | • undulationist n. (Archaic) One who believes that light is a wave. • UNDULATIONIST n. someone who holds the undulatory theory of light. |
| UNINSTRUCTIVE | • uninstructive adj. Not instructive. • UNINSTRUCTIVE adj. not instructive. |
| UNPRETENTIOUS | • unpretentious adj. Simple, humble, not pretentious, plain. • UNPRETENTIOUS adj. free from pretension. |
| UNSATURATIONS | • unsaturations n. Plural of unsaturation. • UNSATURATION n. absence of saturation. |
| UNSUBSTANTIAL | • unsubstantial adj. (Archaic) Insubstantial. • UNSUBSTANTIAL adj. not substantial. |
| UNTACTFULNESS | • untactfulness n. The quality of being untactful; absence of tact. |