razor
Word family adjectiverazorablenounrazorbackrazorbillrazor bladerazorfishrazor wirerazor
Hair & beauty
ra·zor /ˈreɪzə $ -ər/ ●○○ noun 1 
DCB[countableC] a tool with a sharp blade, used to remove hair from your skin 剃（须）刀；刮胡刀 → shaver
DCB[countableC] a tool with a sharp blade, used to remove hair from your skin 剃（须）刀；刮胡刀 → shaver an electric razor
电动剃须刀
a disposable razor
一次性剃刀
2 be on a razor/razor’s edge British EnglishBrEDANGEROUS to be in a difficult position where a mistake could be dangerous 处于险境
Politically we are on a razor edge.
我们在政治上处于险境。
Examples from the Corpus
razor• His hairbrush, razor, everything I'd previously touched, had relinquished his identity.• An open razor, the blade thick with clotted blood lay on top of it, a few inches from his right hand.• He stopped freezing his wrist long enough to prop a clean blade against the razor case.• My hands shook as I slowly ran the razor over my face, cutting through the cream in even swaths.
(1200-1300) Old French raseor, from raser; → RAZE