How do you spell Quickness

Available Definitions:
1)  n. - The condition or quality of being quick or living; life.
2)  n. - Activity; briskness; especially, rapidity of motion; speed; celerity; as, quickness of wit.
3)  n. - Acuteness of perception; keen sensibility.
4)  n. - Sharpness; pungency of taste.