This is the 6604th most frequent Japanese word.
トントン
"トントン" refers to the sound or action of light tapping or knocking.
In this sentence, "トントン" is an onomatopoeia representing the gentle knocking sound on the door.
ドアをトントンと叩いた。
I knocked on the door gently.
Here, "トントン" is part of the phrase "トントン拍子," symbolizing smooth and uninterrupted progression.
トントン拍子でプロジェクトが進んだ。
The project progressed smoothly with no issues.
In this case, "トントン" captures the light and rhythmic sounds or motions of the bird's hopping.