Sound from a puppy

YIP

This high-pitched noise is often heard when a small dog gets excited or startled—it’s shorter than a bark but louder than a whimper.

A puppy makes a high-pitched, short barking sound, which is often called a "yip." The clue is straightforward—it directly describes the noise a young dog might make without any hidden wordplay or tricks. If you’ve ever heard a small or excited puppy, you’d recognize this sharp, quick sound right away. The answer "YIP" fits perfectly as the simple, three-letter word for that exact noise.