Shaving is the removal of hair, by using a razor or any other kind of bladed implement, to slice it down—to the level of the skin or otherwise. How to use shave in a sentence. to remove a thin layer from; to cut off in thin layers or shreds: slice; I cut myself shaving this morning. I got a shaving profile recently but it expires in a month. I'm in AIT and the doc told me it was highly frowned upon in the army and I would get.