15-letter words containing m, i, s, a
- wrestling match — sport: contention by grappling opponent
- yosemite valley — a glacial valley in Yosemite National Park in central California, in the Sierra Nevada Mountains. It has an altitude of about 1200 m (4000 ft), with sheer walls rising about another 1200 m (4000 ft).
- zermelo's axiom — axiom of choice.