One of several rivers in Eastern Europe, including but not limited to: / Seversky Donets River, which flows through Russia and the Ukraine into the Don River.

Initialism of long-term relationship. / Initialism of long terminal repeat.

Someone who works or deals in (animal) horn or horns. / (obsolete) Someone who blows a horn (the musical insturment); a hornblower. / (obsolete) Someone who cuckolds.

present participle of antedate