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Knife-edge
noun
Definitions
Noun
- 1 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.
- 2 a narrow boundary wordnet
- 3 A precarious balance that could be upset by a very small force in either direction. figuratively
"The game was on a knife-edge."
- 4 Used other than figuratively or idiomatically: the edge of a knife.
See also for "knife-edge"
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