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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151. They're putting in a new sink with chrome fittings.
152. The plumber crouched down and looked under the sink.
153. You can empty those glasses out in the sink.
154. Put the words float and sink on the board.
155. Do well and right, and let the world sink. George Herbert 
156. Islands that can sink or disappear forever.
157. It was sink or swim as a classroom teacher.
158. Sink mixers have divided flow so that the hot and cold water do not mix until they have left the tap.
159. In so doing, I banged into the edge of the sink and fell to the floor.
160. Stash a plastic spray bottle with a mixture of bleach and water under the sink.
161. Our life is like a boat that can float. Some row and go! Some blink and sink!! RVM
162. Then we slipped into the kitchen, got up on the sink, and hauled ourselves into the little attic.
163. Each room contains a sink, but the bathroom is one flight up.
164. For a one-dimensional flow, the only possible attractor is a stable fixed point or sink.
165. Burglars broke in and took everything but the kitchen sink.
166. His father pushed back his chair and stood and leaned back against the sink,(www.Sentencedict.com) looking into the middle distance.
167. The girl went to the sink and pumped a cupful of water.
168. You bring the papers up, but the next day they sink to the bottom again.
169. And because dense bones tend to sink, black swimmers need to work much harder and expend more energy to keep afloat.
170. You want the base low enough so that the first row will sink below ground level.
171. In a gravitational field this causes the denser air to sink and buoy up the less dense gas.
172. She washed up the dinner service, which she'd left in the sink to soak.
173. And putting it in an alley can cause garbage trucks to sink up to their axles.
174. You feel you have to cough, and you spew the liquid all over the counter and sink.
175. Yet it's James they have to thank every time they sink into their armchairs to listen to their favourite classics.
176. Those that are wounded and stunned will be consumed by the swordfish at leisure, circling round any that start to sink.
177. One family was loading kitchen cabinets, a sink, a refrigerator, a sofa and a radiator on to a large truck.
178. She stood behind the china cabinet and watched as he poured it down the sink.
179. An old, glazed porcelain sink can be transformed into a water garden by coating it with an artificial stone mixture.
180. We were able to wring out our socks in the bathroom sink and dry them under the electric hand dryer.