1. on tiptoe : 踮脚;
副词
不及物动词
名词
1. 踮起脚走;蹑手蹑脚地走
If you tiptoe somewhere, you walk there very quietly without putting your heels on the floor when you walk.
2. 踮着脚
If you do something on tiptoe or on tiptoes, you do it standing or walking on the front part of your foot, without putting your heels on the ground.
1. the tip of a toe