knife-edge

listen to the pronunciation of knife-edge
English - English
You can use knife-edge to refer to something that is very exciting or tense because you do not know what is going to happen next. Tonight's knife-edge vote could be uncomfortably close
To be on a knife-edge means to be in a situation in which nobody knows what is going to happen next, or in which one thing is just as likely to happen as another. The game is poised on a knife-edge. One mistake or one piece of good luck could decide it
a narrow boundary; "he lived on a knife-edge between genius and insanity
a narrow boundary; "he lived on a knife-edge between genius and insanity"
the sharp cutting side of the blade of a knife
blade of a knife, sharp side of a knife
knifeedge
A piece of steel sharpened to an acute edge or angle, and resting on a smooth surface, serving as the axis of motion of a pendulum, scale beam, or other piece required to oscillate with the least possible friction
knife-edge
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