Democrats, their backs up, have altered Senate rules on filibusters in the face of Republican obstruction.
The tenor of the briefing room made clear just how fundamentally the GOP has altered the terms of political debate.
The Second World War altered the map of Europe, and redistributed art on an unprecedented scale.
late 14c., "to change (something)," from Old French alterer "change, alter," from Medieval Latin alterare "to change," from Latin alter "the other (of the two)," from PIE *al- "beyond" (see alias (adv.)) + comparative suffix -ter (cf. other). Intransitive sense "to become otherwise" first recorded 1580s. Related: Altered; altering.