Even when you can't see it, you can hear its thunderous roar day and night.

WSJ: Trekking in Otter Space

Any echoes of those once prominent voices can barely be heard amid the thunderous roar of oncoming inflation.

FORBES: Interest Rates Are on the Launch Pad

The roar of the Zambezi tumbling from the falls is indeed thunderous, and the thick spray that swirls like smoke around the cascade can be seen for miles.

CNN: Victoria Falls ... without the bungee jumping