a small device with a sharp blade for removing hair, especially from the face or legs

Do you use an electric razor or the kind that you have to put a razor blade in? 你用的是电动剃须刀还是那种要安刀片的刮胡刀？

on a razor edgeidiom 处于险境；境况岌岌可危

to cut something such as hair using a razor

She razored the hair in long wispy layers. 她把头发修剪成了多层的长发。