What are the opposite words for slab?

The antonyms for the word "slab" include terms like "piece," "slice," "segment," "chunk," "portion," and "fragment." All of these words connote that something has been separated into smaller portions, and each word suggests a different way that the separation has occurred. For instance, "piece" can be used to describe a small portion that has been cut from a larger object, while "slice" refers to a thin, flat, and often uniform piece that has been removed with a sharp blade. Meanwhile, "fragment" usually implies that something has been broken or shattered into smaller pieces, while "segment" can apply to something that has naturally grown or developed in a certain pattern, like a section of an orange or a worm's body.