Mole/məʊl/ Definition 1 of 6Pro Tip 1/2Underground Dweller The term 'mole' represents an animal that makes tunnels, mostly unseen. Farmers often try to deter moles due to the damage they can cause. Pro Tip 2/2Garden Pest 'Mole' can imply a nuisance in the context of lawn care or gardening. I need to fix my lawn because of all the mole hills.