12-letter words containing m, e, t, l, s
- vowel system — the vowel sounds of a language, especially when considered as forming an interrelated and interacting group.
- west mifflin — a city in W Pennsylvania, on the Monongahela River.
- westmoreland — William Childs [chahyldz] /tʃaɪldz/ (Show IPA), 1914–2005, U.S. army officer: commander of U.S. forces in Vietnam and Thailand 1964–68.
- white salmon — the yellowtail, Seriola lalandei.