The term "manhole eye" is used to describe the opening or cover of a manhole. However, this term has several synonyms that can be used interchangeably. Some other synonyms for manhole eye include manhole cover, access point, inspection hole, sewer cover, utility cover, and service hatch. These terms are often used in construction and architecture to describe the different types of access points in sewers, utility lines, and other underground infrastructures. Although they have slightly different meanings, they all refer to the same general concept of a plate or lid covering an opening in a paved or surfaced area of the ground.