noun Traditionally the third of the four seasons, when deciduous trees lose their leaves, and temperatures and daylight hours decrease; typically regarded as spanning the months of September, October, and November in the Northern Hemisphere, and the months of March, April and May in the Southern Hemisphere.
autumn leaves
noun The time period when someone or something is past its prime.
noun A person with relatively dark hair and a warm skin tone, seen as best suited to certain colours in clothing.
verb To spend the autumn (in a particular place).
verb To (cause to) undergo the changes associated with autumn, such as leaves changing color and falling from trees.