The phrase "hast relation" typically means a close or immediate relationship. However, there are many other synonyms that could be used to describe this type of relationship. For example, you could use the term "intimate connection" to describe a relationship that is particularly close or personal. Another option might be to say that two people have a "strong bond" or a "deep attachment" to one another. Other synonyms for "hast relation" might include phrases like "tight-knit relationship," "close affiliation," or "close partnership." Ultimately, the choice of which synonyms to use will depend on the context in which you are using them and the specific shades of meaning you are looking to convey.