While snorkeling, I gently touched a sea sponge and watched tiny fish dart through its pores.

A glass sponge anchored to a deep-sea rock filtered microscopic particles from the cold current.

She dried the dishes with a sponge cloth, its honeycomb weave absorbing the water in seconds.

A breadcrumb sponge clung to the shaded rock, its porous surface home to tiny crustaceans.

In the lab, the researchers compared the absorption rates of different breadcrumb sponges.

In the early 20th century, several states used a sponge tax to raise revenue by imposing a state estate tax that was credited against the federal estate tax, allowing them to increase state income without raising the overall tax burden.

The lab tested several chewing sponges to see which absorbed the medicine best.

She showed the children how to use a chewing sponge to clean their teeth after meals.

After three hours of trying to fix the old engine, he finally threw in the sponge.

During the final round of the debate, he throws in the sponge, ending the contest.