| MASSASAUGAS | • massasaugas n. Plural of massasauga. • MASSASAUGA n. a kind of rattlesnake. |
| MISFOCUSSES | • MISFOCUS v. to focus badly. |
| MOUSINESSES | • MOUSINESS n. the state of being mousy. |
| MUMSINESSES | • MUMSINESS n. the state of being mumsy. |
| MUSHINESSES | • MUSHINESS n. the state of being mushy. |
| MUSKINESSES | • muskinesses n. Plural of muskiness. • MUSKINESS n. the state of being musky. |
| MUSSINESSES | • MUSSINESS n. mess, confusion. |
| MUSTINESSES | • mustinesses n. Plural of mustiness. • MUSTINESS n. the state of being musty. |
| SEMISOLUSES | • SEMISOLUS n. an advertisement on the same page as another advertisement but not adjacent to it. |
| SENSUALISMS | • sensualisms n. Plural of sensualism. • SENSUALISM n. the condition or character of one who is sensual. |
| SUBMISSIONS | • submissions n. Plural of submission. • SUBMISSION n. the act of submitting. |
| SUBMISSNESS | • submissness n. (Obsolete) submissiveness. • SUBMISSNESS n. (archaic) the state of being submiss. |
| SUMPSIMUSES | • SUMPSIMUS n. (Latin) a correct expression that replaces a popular but wrong one. |
| SURMISTRESS | • SURMISTRESS n. a female surmaster, the second master or deputy head in a school. |