| ISTHMUSES | • isthmuses n. Plural of isthmus. • ISTHMUS n. (Latin) a strip of land connecting two larger land masses. |
| KOUMISSES | • koumisses n. Plural of koumiss. • KOUMISS n. (Russian) a beverage made from camel's milk, also KOUMIS, KOUMYS, KOUMYSS, KUMIS, KUMISS, KUMYS. |
| MESSIEURS | • messieurs n. Plural of monsieur. • Messieurs n. Plural of Monsieur. • MONSIEUR n. (French) a French title of courtesy for a man. |
| MISASSUME | • misassume v. (Transitive) To assume incorrectly. • MISASSUME v. to assume wrongly. |
| MISUSAGES | • misusages n. Plural of misusage. • MISUSAGE n. incorrect use. |
| MOUSINESS | • mousiness n. The property of being mousy. • MOUSINESS n. the state of being mousy. |
| MUMSINESS | • mumsiness n. The quality of being mumsy. • MUMSINESS n. the state of being mumsy. |
| MUSHINESS | • mushiness n. The characteristic of being mushy. • MUSHINESS n. the state of being mushy. |
| MUSICLESS | • musicless adj. Without music. • MUSICLESS adj. without music. |
| MUSKINESS | • muskiness n. The characteristic of being musky. • MUSKINESS n. the state of being musky. |
| MUSSINESS | • mussiness n. The quality of being mussy. • MUSSINESS n. mess, confusion. |
| MUSTINESS | • mustiness n. The characteristic of being musty. • MUSTINESS n. the state of being musty. |
| SEMISOLUS | • SEMISOLUS n. an advertisement on the same page as another advertisement but not adjacent to it. |
| SURMISERS | • surmisers n. Plural of surmiser. • SURMISER n. one who surmises. |
| TRISMUSES | • TRISMUS n. (Latin) a tetanic spasm of the muscles of the jaw, aka lockjaw. |