| DISUNION | • disunion n. Separation of a union. • DISUNION n. the state of being disunited. |
| ILLUSION | • illusion n. (Countable) Anything that seems to be something that it is not. • illusion n. (Countable) A misapprehension; a belief in something that is in fact not true. • illusion n. (Countable) A magician’s trick. |
| INFUSION | • infusion n. A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities. • infusion n. The act of steeping or soaking a substance in liquid so as to extract medicinal or herbal qualities. • infusion n. The act of installing a quality into a person. |
| INUSTION | • inustion n. (Obsolete) The act of burning or branding. • INUSTION n. burning in. |
| MISUNION | • misunion n. A bad or wrong union or alliance. • MISUNION n. a bad union. |
| NIOBIUMS | • niobiums n. Plural of niobium. • NIOBIUM n. a metallic element, formerly called columbium. |
| OPINICUS | • opinicus n. (Heraldry) An imaginary heraldic creature with an eagle’s head, a short tail, and sometimes wings. • OPINICUS n. a composite heraldic beast, part lion, part dragon, with features of other animals. |
| QUINOIDS | • quinoids n. Plural of quinoid. • QUINOID n. a quinonoid substance. |
| SINUSOID | • sinusoid n. (Mathematics) A curve having the shape of a sine wave. • sinusoid n. (Anatomy) Any of several channels through which venous blood passes in various organs. • sinusoid adj. (Mathematics) sinusoidal. |
| TUITIONS | • tuitions n. Plural of tuition. • TUITION n. a fee for instruction. |
| UNIONISE | • unionise v. Non-Oxford British spelling standard spelling of unionize. • UNIONISE v. to form into a union, also UNIONIZE. |
| UNIONISM | • unionism n. The support of advocacy of a union, especially of a trade union. • unionism n. (Often capitalised) Support for the North (the Union) during the American Civil War. • unionism n. (Often capitalised) Support for the continuance of the United Kingdom (especially with respect to Northern Ireland). |
| UNIONIST | • unionist adj. (Sometimes capitalised) Of or pertaining to unionism (in any sense). • unionist n. An advocate or supporter of unionism (in any sense). • unionist n. A trade unionist. |
| UNITIONS | • unitions n. Plural of unition. • UNITION n. conjunction. |