A raised bridge on a submarine; often used for entering and exiting WordNet 3.0 & Open English WordNet

A conning tower is a raised platform on a ship or submarine, often armoured, from which an officer in charge can conn the vessel, controlling movements of the ship by giving orders to those responsible for the ship's engine, rudder, lines, and ground tackle. Wikipedia

A raised platform on a ship or submarine from which an officer can give directions to the helmsman Wikipedia Disambiguation

Portion of a ship Wikidata

The armoured control tower of an early iron warship from which the ship was navigated in battle. Wiktionary