Concrete and Spore

Concrete noun - A strong hard building material composed of sand and gravel and cement and water.

Spore is an antonym for concrete.

Nearby Words: concreted, concretion, concretely, concretize, concretise

Spore noun - A small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion.

Concrete is an antonym for spore in beginning topic.