tiptoe

Universal Words noun, verb noun IDIOMS on tiptoe / tiptoes standing or walking on the front part of your foot, with your heels off the ground, in order to make yourself taller or to move very quietly or lightly: She had to stand on tiptoe to reach the top shelf. * We crept around on tiptoes so as not to disturb him. verb [V] [usually +adv./prep.] to walk using the front parts of your feet only, so that other people cannot hear you: I tiptoed over to the window.