Sightline is a term used to refer to an unobstructed view of a particular area. However, there are several synonyms for this term, including line of sight, view, gaze, vantage point, visual range, and field of vision. These synonyms all imply an area that is visible to the eye, either directly or through a device such as a telescope or binoculars. These terms are often used in the context of architecture, urban planning, and theater design, where the placement of objects or buildings can affect the visibility of an area. Overall, these synonyms for sightline all convey the same fundamental meaning of an unobstructed view of a specific space or object.