Gat lay of land is a term commonly used to describe a person's understanding or knowledge of a particular situation or topic. There are a number of synonyms that can be used in place of this term, such as 'grasp of the situation', 'comprehension of the matter' or 'knowledge of the terrain'. Other alternatives might include 'familiarity with the territory', 'insight into the issue', or 'understanding of the landscape'. Each of these phrases captures a slightly different nuance of the concept, but all convey the idea that someone has a good understanding of the matter at hand. Whatever the term used, having a gat lay of land can be a valuable asset in any situation.