Terrier (noun)

A type of small dog that is active and energetic, often used for hunting and as a companion animal.

Origin:

Mid 17th century: from french, from latin terrarius "earthy", from terra "earth".

Examples:

1. The Jack Russell Terrier is a popular small breed of dog.
2. Terriers are known for their energy and playfulness.
3. The terrier barked at the mailman.
4. Terriers were originally bred to hunt small game.
5. I'm thinking of getting a terrier because they are good with kids.