Sharp

iss

(of a note, raised by one semitone)

klyftig

(intelligent)

skarp

(able to cut easily)

skarp

(having an intense, acrid flavour)

skarp

(intense and sudden (of pain))

skarpsinnig

(intelligent)

vass

(able to cut easily)

vass

(pointed, able to pierce easily)

prick

(exactly)

korsförtecken

(sign for a sharp note on the staff)