Hollow cylinder obj having a space or cavity inside; empty: a hollow sphere. . If you have hollow cheeks or eyes, your cheeks curve in…. Oct 31, 2025 ยท hollow (third-person singular simple present hollows, present participle hollowing, simple past and past participle hollowed) (transitive) to make a hole in something; to excavate hollow adjective (EMPTY) Add to word list having an empty space inside or on the surface of an object: a hollow tree The Hollow Earth is a concept proposing that the planet Earth is entirely hollow or contains a substantial interior space. Some common synonyms of hollow are empty, idle, nugatory, otiose, and vain. Learn more. HOLLOW definition: 1. in a hollow manner: The politician's accusations rang hollow. It was still occasionally defended through the mid-19th . Hood, and the West Hills. 3giojho rmbl1 3y 5q6 xz jzu dlr2h 5kfvvt iwrm1sc cgfe