When it comes to expressing the concept of "lines with", there are several synonyms that can be used in the English language. One such synonym is "aligned with", which can be used to describe the relationship between two entities that are in the same direction. Another useful synonym is "connected with", which could be used to describe two things that share a close relationship or association. Alternatively, "interconnected with" could be used to describe two things that are closely linked or related to one another. Other synonyms that could be used include "coupled with", "paired with", "associated with" and "correlated with".