How do you spell Tiptoe

Available Definitions:
1)  n. - The end, or tip, of the toe.
2)  a. - Being on tiptoe, or as on tiptoe; hence, raised as high as possible; lifted up; exalted; also, alert.
3)  a. - Noiseless; stealthy.
4)  v. i. - To step or walk on tiptoe.