Fertilising refers to the process of adding nutrients to soil or crops to enhance their growth and productivity. There are various synonyms for fertilising that can be used in different contexts. Some of these synonyms include enriching, nourishing, fortifying, boosting, stimulating, and invigorating. Enriching can be applied when discussing adding organic matter or compost to the soil. Nourishing and fortifying can refer to the addition of specific nutrients such as nitrogen, phosphorus or potassium. Boosting, stimulating, and invigorating can be applied when discussing the promotion of plant growth through the addition of natural or synthetic fertilisers. These synonyms can be used interchangeably depending on the specific context of the conversation.