Which word describes something that is bigger than another thing?

If one dog is fast, and another dog is even faster, which word describes the second dog?

Sarah has a tall building. Tom has a building that is taller than Sarah's. Which word describes Tom's building?

Which word describes the smallest thing in a group?

The red car is fast. The blue car is faster than the red car. The yellow car is the fastest of all. Which car is the fastest?

Which word is used to compare two things, like two colors?

If a book is interesting, and another book is more interesting, what word describes the second book?

Which word describes something that is the most tall?

If one cat is big and another cat is bigger, what is the word for the cat that is the most big?

Which word means something is the most fast?