sinksinksinkssanksunksinking1verb (sinks, sinking, sank/, has sunk)1to go down under water: If you throw a stone into water, it sinks. The fishing boat sank to the bottom of the sea.Look at float.2to make a ship go down under water: The ship was sunk by a torpedo.3to go down: The sun sank slowly behind the hills.sinksinksinks2nounthe place in a kitchen where you wash dishes