Sharp

bystrý

(intelligent)

bystrý

(observant, alert, acute)

is

(of a note, raised by one semitone)

ostrý

(able to cut easily)

ostrý

(pointed, able to pierce easily)

ostrý

(having an intense, acrid flavour)

ostrý

(intense and sudden (of pain))

ostrý

(offensive, critical, or acrimonious)

přesný

(exact, precise, accurate, keen)

s křížkem

(of a note, raised by one semitone)

přesně

(exactly)

is

(note that is sharp in a particular key)

křížek

(sign for a sharp note on the staff)