pointed; tapering; sharp; (of a sound) shrill; piercing; (of one's hearing, sight etc.) sharp; acute; keen; to make (one's voice) shrill; sharp point; tip; the best of sth; the cream of the crop

to screech; to shriek

peak; apex; world best; number one; finest (competitors); top (figures in a certain field)

the extremity of the foot

sharp; intense; penetrating; pointed; acute (illness)

sharp pointed end; the tip; the cusp; tip-top; most advanced and sophisticated; highest peak; the best

fingertip

harsh; scathing; acid (remarks)