a landmass that projects conspicuously above its surroundings and is higher than a hill
(also in pl) a vast amount or quantity
a supply, esp of a specified usu agricultural commodity, in excess of demand
a butter mountain
move mountains
to achieve great results from huge efforts
[derived from St Paul's first letter to the Corinthians (13:2): ‘And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing.’][Middle English from Old French montaigne, ultimately from Latin montanus of a mountain, from mont-, mons mountain]