Main Entry: ¹tip·toe

Pronunciation: \ˈtip-ˌtō, -ˈtō\

Function: noun

Date: 14th century

: the position of being balanced on the balls of the feet and toes with the heels raised —usually used with on; also : the ends of the toes

— on tiptoe : alert, aroused <the contest of skill that puts one on tiptoe to win — Deerfield (Wisconsin) Independent>