1. past tense of sink; went down below the surface of water or another liquid
2. past tense of sink; moved downward to a lower level or position
3. past tense of sink; decreased in value, amount, or intensity

Examples

• The ship sank during the storm.
• The stone sank to the bottom of the pond.
• She sank into the comfortable chair after work.
• His heart sank when he heard the bad news.
• The sun sank below the horizon.
• Stock prices sank after the announcement.
• The boat sank within minutes of hitting the rocks.