Noun
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.
Source: Webster's dictionaryknife edge
The president's decision yesterday to set into motion the development of the hydrogen bomb... has placed us on the knife-edge of history. Henry M. Jackson
he lived on a knife-edge between genius and insanity Source: Internet
But the ridge leading up to the summit is considerably more nail-biting as it runs along a knife-edge - not one to be recommended for those scared of heights. Source: Internet
But one of the Government's top scientific advisers warned this morning that England is 'on a knife-edge' as it eases lockdown, with the virus still a serious threat there. Source: Internet
“He hasn’t faltered from his desire to play football, fast, attacking football and we’re on a knife-edge at times, but ultimately I think you get your rewards if you believe and we have done. Source: Internet
Again, the team managed to pull another win out of the bag, out of the four games played, leaving the team on a knife edge to finish the final day on Friday. Source: Internet