"Pine-Tree State" refers to the state of Maine, known for its vast forests of pine trees. However, there are several other synonyms that can be used to refer to this beautiful state. For instance, it is also known as the "Vacationland State" due to its tourism and scenic beauty. Another synonym is the "Lighthouse State" because of the numerous lighthouses that adorn its rocky coastline. Maine is also referred to as "The Way Life Should Be" due to its laidback lifestyle, friendly people, and natural beauty. Additionally, it is sometimes called the "Downeast State" because of its location on the easternmost coast of the US.