When describing the location of two objects in proximity to each other, "adjacent to" is a common phrase to use. However, there are several other synonyms that can be more specific or nuanced. For example, "beside" implies two objects are next to each other but not necessarily touching. "Adjacent" can also be used in place of "adjacent to", with a more exact meaning of being directly next to something. "Close to" suggests a nearness but not direct adjacency. "Bordering" refers to two things that meet at a boundary or edge. "Neighboring" is similar to adjacent but emphasizes the idea of being in close proximity. Finally, "abutting" describes two objects that share a common boundary or touch each other.