groundswell

「高まり、うねり」。

CNNの記事、'18 days of protest culminate in Mubarak's ouster'から。

'Egyptian President Hosni Mubarak stepped down Friday and handed over power to the military, his nearly three decades of iron rule ended by a groundswell of popular protests that began January 25.

In a somber one-minute announcement on state television, Vice President Omar Suleiman announced Mubarak's resignation and said the Supreme Council of the Armed Forces will "run the affairs of the country."

As Suleiman spoke, deafening cheers erupted among tens of thousands of Egyptians who thronged the streets of Cairo. It was a moment they had sought throughout long, often tense days of demonstrations -- some of them violent -- that demanded Mubarak's departure.

It was also a moment that many in the Arab world's powerhouse nation had not dared contemplate.'