n. pl. ma·hog·a·nies 1. a. Any of several tropical American evergreen trees of the genus Swietenia of the family Meliaceae, especially S. mahagoni and S. macrophylla, valued for their hard, reddish-brown wood.
b. The wood of any of these trees, used in making furniture and musical instruments.
2. a. Any of several trees of the family Meliaceae having similar wood, such as African mahogany.
b. Any of several trees of other families having similar wood, such as Philippine mahogany.
c. The wood of any of these trees.
3. A moderate reddish brown.