Synonym: decline, droop, fade, fall, go down, lower, pine, settle, slump, submerge, weaken. Antonym: float, rise. Similar words: link, pink, think, blink, brink, shrink, link up, drink to. Meaning: [sɪŋk] 
n. 1. plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe 2. (technology) a process that acts to absorb or remove energy or a substance from a system 3. a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof 4. a covered cistern; waste water and sewage flow into it. v. 1. fall or drop to a lower place or level 2. cause to sink 3. pass into a specified state or condition 4. go under, "The raft sank and its occupants drowned" 5. descend into or as if into some soft substance or place 6. appear to move downward 7. fall heavily or suddenly; decline markedly 8. fall or sink heavily 9. embed deeply.
n. 1. plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe 2. (technology) a process that acts to absorb or remove energy or a substance from a system 3. a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof 4. a covered cistern; waste water and sewage flow into it. v. 1. fall or drop to a lower place or level 2. cause to sink 3. pass into a specified state or condition 4. go under, "The raft sank and its occupants drowned" 5. descend into or as if into some soft substance or place 6. appear to move downward 7. fall heavily or suddenly; decline markedly 8. fall or sink heavily 9. embed deeply. 
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1. Who swims in sin shall sink in sorrow. 
2. Many sands will sink a ship.
3. A little leak will sink a great ship.
4. A small leak will sink a great ship.
5. She poured boiling water down the sink.
6. She poured the dark brown liquid down the sink.
7. Wood does not sink in water.
8. Our boat will sink unless we bail .
9. The pen belongs under the sink.
10. The sink was piled high with greasy dishes.
11. You'll need a strong abrasive for cleaning this sink.
12. His head had struck the sink and was bleeding.
13. The wheels started to sink into the mud.
14. The implication took a while to sink in.
15. Don't overload the boat or it will sink.
15. Wish you can benefit from our online sentence dictionary and make progress day by day!
16. She filled the sink with hot water.
17. She's bunged the sink up with tea leaves.
18. The store had everything including the proverbial kitchen sink.
19. The sink overflowed and swamped the kitchen.
20. Love makes man grow up or sink down.
21. Their motorboat struck a rock and began to sink.
22. The sink was full of dirty plates.
23. Wood does not sink in water,[sentencedict.com] it floats.
24. He desired not to be pedestalled, but to sink into the crowd.
25. We must sink a borehole so that people will have water.
26. The sink shelf is grooved so that the water will run off.
27. Please scrub the sink.
28. He's only staying three days, but he arrived with everything but the kitchen sink.
29. Anything anybody said to him to try and buck him up wouldn't sink in.
30. It will take a little time for the rain to sink into the dried earth.