Wide extent is a phrase that describes the vast nature of something. It can be used to express the breadth or scope of something that stretches across a large distance or area. Synonyms for this phrase include widespread, extensive, broad, spacious, expansive, large-scale, grand, far-reaching, and comprehensive. These words can be used to describe a range of situations and objects, from a wide extent of land or ocean to the vast scope of technology. By using these synonyms, writers and speakers can add depth and nuance to their descriptions and convey a greater sense of the magnitude and importance of what they are discussing.