Maine is a state of the United States. It is probably named after the French province of Maine. Another possibility for the name 'Maine' is that the people living on islands along the coast of Maine used to speak of going to the mainland as 'going over to the Main". Its U.S. postal abbreviation is ME. Four U.S. Navy ships were named USS Maine in honor of the state. The state is chilly, with moderately warm summers but very few actual hot days.