When talking about movement or positioning, we often need to describe things that are going "in the same direction". While this phrase is perfectly adequate, there are several synonyms that can add nuance or variation to your language. These include "coincident", "concordant", "aligned", "parallel", "going alongside", "running alongside", "concurrent", and "concomitant". Depending on context, these synonyms can help you describe different kinds of movement or alignment, such as things that are running parallel to each other or happening simultaneously. Using varied language can make your writing more engaging and precise, so don't be afraid to switch things up!