This is the 9470th most frequent Japanese word.
笛
Flute.
In this example, '笛' refers to an object utilized in play, showing its application as a tool.
子供たちが笛を使って遊んでいる。
The children are playing using flutes.
In this sentence, '笛' is used to refer to a musical instrument, specifically a flute.
彼は木の笛を吹いています。
He is playing a woodwind flute.
Here, '笛' is used in the context of its sound, indicating the acoustic properties of a flute.