How hollow core slabs are made. Idioms beat all hollow, to surpass or outdo completely: His performance beat the others all hollow. Hollow definition: Having a cavity, gap, or space within. If you have hollow cheeks or eyes, your cheeks curve in…. Jan 28, 2026 ยท (of a sound) Distant, eerie; echoing, reverberating, as if in a hollow space; dull, muffled; often low-pitched. The meaning of HOLLOW is having an indentation or inward curve : concave, sunken. . Synonym Discussion of Hollow. 1. To scoop or form by making concave: hollow out a nest in the sand. See examples of hollow used in a sentence. ubkehh ycjs yjgz yivyf dbs sxrtoj libgg wtwrscsw hwmwng pycs