In English, the word for frog is "frog". This word likely originated from the Old English word "frogga", which in turn probably came from the Germanic word "fraka" or "frokka".

Here are some examples of how "frog" can be used in a sentence:

The little boy caught a frog in the pond.

Frogs are amphibians that can live on land and in water.

The frog croaked loudly in the night.

In Chinese, the word for frog is "青蛙" (qīngwā). Here are the same sentences translated into Chinese:

小男孩在池塘里捉到了一只青蛙。

青蛙是一种两栖动物，能够生活在陆地和水中。

青蛙在夜间发出了清脆的声音。