lena

noun

1. a river in the Russian Federation in Asia, flowing NE from Lake Baikal through the Yakutsk Republic into the Laptev Sea. 2800 miles (4500 km) long.
2. a female given name, form of Helena.

noun

1. a river in Russia, rising in S Siberia and flowing generally north through the Sakha Republic to the Laptev Sea by an extensive delta: the longest river in Russia. Length: 4271 km (2653 miles)

fem. proper name, originally a shortened form of Helena or Magdalena.