A son is a male offspring; a boy or man in relation to his parents. The female counterpart is a daughter.

A son is a male offspring in relation to a parent.

The Syun (, , ) is a river in Bashkortostan and Tatarstan, Russian Federation, a left-bank tributary of the Belaya River (Kama basin). It is long, of which are in Tatarstan. Its drainage basin covers . Major tributaries in Tatarstan are Kalmiya, Sikiya, Terpelya, Bezyada, and Sharan in Bashkortostan. The maximal water discharge is (1979), and the maximal mineralization 500 to 1000 mg/l. Average sediment at the mouth per year is . Drainage is regulated. Since 1978 it is protected as a "natural monument of Tatarstan".

Toxicodendron succedaneum, the wax tree, Japanese wax tree or son in Vietnam, is a flowering plant species in the genus Toxicodendron found in Asia, although it has been planted elsewhere, most notably Australia and New Zealand. It is a large shrub or tree, up to 8 m tall, somewhat similar to a sumac tree. Because of its beautiful autumn foliage, it has been planted outside of Asia as an ornamental plant, often by gardeners who were apparently unaware of the dangers of allergic reactions. It is now officially classified as a noxious weed in Australia and New Zealand. It is one of the city tree symbols of Kurume, Fukuoka, Japan.

In Norse mythology, Óðrerir, Óðrørir or Óðrœrir refers either to one of the vessels that contain the mead of poetry (along with Boðn and Són) or to the mead itself.