The term 'dog strap' can be solved by the word 'LEASH', which is a five-letter word. A LEASH is a type of strap or cord that is used to control or restrain an animal, such as a dog. It is typically attached to a collar or harness and held by the owner, allowing them to keep their pet close and under control. Leashes are commonly used when walking a dog, as they provide a safe and secure way to keep the animal from running away or getting into trouble.