The term RAIN TREE is composed of two crossword solutions, SAMAN (5 letters) and GUANGO (6 letters). SAMAN is a type of tree native to Southeast Asia, known for its large, umbrella-shaped canopy. It is also known as the 'Monkey Pod' tree due to its popularity among primates. GUANGO is a species of tree found in Central and South America, which is known for its ability to survive in dry climates. Its leaves are used to make a tea that is believed to have medicinal properties.