We boarded a glass-bottom boat to watch colorful fish drift beneath the clear water.

We spent the afternoon exploring the coral reef on several glass-bottom boats, admiring the colorful fish below.

If the company's sales drop suddenly, the whole operation could bottom fall out before we know it.

She panicked when she saw the bottom falling out of her purse.

We found the bottom fallen out of the box when we picked it up.

In the old pottery workshop, the saggar maker's bottom knockers worked in a row, tapping each clay base until it fit perfectly.

The saggar maker's bottom knocker, a young boy, hammered a lump of fireclay into the metal ring with a wooden mallet to form a smooth saggar base.

When it comes to meeting deadlines, one can always bet one's bottom dollar she'll finish early.

A sincere apology, expressed from the bottom of one's heart, can begin the healing process.

In the old guild, the master would order apprentices to wind up one's bottoms when the workshop bell rang.