Final answer:
The verb 'impinge' means to infringe upon or intrude upon something or someone. When something impinges on neighbors, it means that it encroaches upon their space or affects them in some way.
Step-by-step explanation:
The verb 'impinge' means to infringe upon or intrude upon something or someone. It refers to encroaching upon someone's rights, space, or boundaries. When something impinges on neighbors, it means that it encroaches upon their space or affects them in some way.