Before the speech, she whispered to herself to take a deep breath and steady her hands.

Although she rarely speaks in meetings, everyone has learned that still waters run deep.

He may seem quiet, but still water runs deep, and he knows more than he lets on.

The waist-deep in the Big Muddy conditions made the river crossing perilous.

By the third quarter, the startup realized it was knee-deep in the Big Muddy, facing mounting debts and shrinking cash reserves.

She reminded her daughter that beauty is only skin deep, so she should cultivate kindness and honesty.

The startup's onboarding materials were mile wide and inch deep, mentioning dozens of tools but never explaining how to use any of them.

Faced with cutting staff or selling the factory, the owner felt like he was caught between the devil and the deep blue sea.