While they have a strong bond and care deeply for each other, their relationship is primarily one of friendship, camaraderie, and shared adventures. They are both loyal and supportive of each other, and work together to overcome obstacles and protect their friends.
The "Toy Story" franchise emphasizes the power of friendship and the importance of understanding and accepting each other's differences. Woody and Buzz's relationship is a perfect example of this, showcasing how two very different characters can become the best of friends.