Lay the line is a common expression that means to communicate in a clear and straightforward manner. There are many other synonyms that can be used to describe this concept including, laying it out, stating plainly, spelling it out, making clear, and getting to the point. These phrases all convey the idea of being direct and precise when conveying information. Other synonyms that may be used in a similar context include, speaking frankly, being honest, and being forthright. No matter which synonym is used, the main focus is always on being clear and concise when communicating important information to others.