This is the 7724th most frequent Turkish word.
keski̇n
Sharp.
Here, 'keskin' is used as an adjective to describe the knife's sharpness.
Bıçağın keskin olması işleri kolaylaştırır.
The sharpness of the knife makes tasks easier.
In this sentence, 'keskin' metaphorically describes the clarity and incisiveness of ideas.
Keskin fikirleriyle tartışmaya yön verdi.
He directed the discussion with his sharp ideas.
'Keskin' here describes the abruptness or tight angle of the turn, used figuratively to denote its difficulty.