あひる

In a sentence

• その池には白いあひるがいます。

  There are white ducks in that pond.

  Here, "あひる" is used as a noun referring to the animal 'duck.'

• あひるのように歩くのが楽しいです。

  Walking like a duck is fun.

  In this sentence, "あひる" is part of the phrase "あひるのように" (like a duck), which describes an action.

• 彼女はあひるとたくさん遊んでいました。

  She was playing a lot with the ducks.

  Here, "あひる" refers to the noun 'duck,' describing interaction with it.