Terra Firma is a Latin phrase meaning 'solid GROUND' and is often used to refer to the EARTH's surface. The term can be broken down into five crossword solutions: LAND (4 letters), DRYLAND (7 letters), EARTH (5 letters), GROUND (6 letters), SHORE (5 letters), and SOIL (4 letters). LAND is a general term for the solid surface of the EARTH, while dryland is LAND that is not covered by water. EARTH is another name for the planet we live on, while GROUND is the solid surface of the EARTH. SHORE is the LAND along the edge of a body of water, and SOIL is the upper layer of the EARTH's surface that supports plant life.