Another word for "close" or "nearby" is "proximate." This term is often used in formal or technical contexts to describe something that is near in space, time, or relationship. For example, "The proximate cause of the accident was a mechanical failure."

Other synonyms for "close" or "nearby" include:

• Adjacent: Directly next to or adjoining something. Example: "The park is adjacent to the school."
• Neighboring: Situated or living nearby. Example: "The neighboring town has a great farmers' market."
• Vicinal: Relating to or situated in a neighborhood or nearby area. Example: "The vicinal roads were affected by the construction."
• Immediate: Very close or direct in relation. Example: "The immediate area around the explosion was evacuated."
• Contiguous: Sharing a common border or touching. Example: "The two properties are contiguous."
• Approximate: Close to the actual, but not completely accurate or exact. Example: "The approximate location of the treasure is marked on the map."
• Local: Relating to or occurring in a particular area. Example: "The local community center is just a few blocks away."
• Nigh: An archaic or poetic term meaning near in time or place. Example: "The end of the journey is nigh."

Each of these words carries a slightly different nuance, so the choice of synonym depends on the specific context in which you want to convey closeness or proximity.