- 1[countable] a piece of artificial or natural material that is soft and light and full of holes and can hold water easily, used for washing or cleaning a bath sponge (= to wash your body with in the bath) (figurative) His mind was like a sponge, ready to absorb anything.
- 2[countable] a simple sea creature with a light body full of holes, from which natural sponge is obtained
Check pronunciation: sponge