To make fertile or enrich; to supply with nourishment for plants; to make fruitful or productive; as, to fertilize land, soil, ground, and meadows.
- To cause the fertilization of (an ovum, for example).
- To make (soil, for example) fertile: Compost fertilizes the soil.
- To spread fertilizer on: used a mechanical spreader to fertilize the lawn.
- To spread fertilizer.