The Collaborative International Dictionary
Sank \Sank\ (s[a^][ng]k), imp. of Sink.
Sink \Sink\ (s[i^][ng]k), v. i. [imp. Sunk (s[u^][ng]k), or ( Sank (s[a^][ng]k)); p. p. Sunk (obs. Sunken, -- now used as adj.); p. pr. & vb. n. Sinking.] [OE. sinken, AS. sincan; akin to D. zinken, OS. sincan, G. sinken, Icel. s["o]kkva, Dan. synke, Sw. sjunka, Goth. siggan, and probably to E. silt. Cf. Silt.]
To fall by, or as by, the force of gravity; to descend lower and lower; to decline gradually; to subside; as, a stone sinks in water; waves rise and sink; the sun sinks in the west.
I sink in deep mire.
2. To enter deeply; to fall or retire beneath or below the surface; to penetrate.
The stone sunk into his forehead.
--1 San. xvii. 49.
Hence, to enter so as to make an abiding impression; to enter completely.
Let these sayings sink down into your ears.
--Luke ix. 4
4. To be overwhelmed or depressed; to fall slowly, as so the ground, from weakness or from an overburden; to fail in strength; to decline; to decay; to decrease.
I think our country sinks beneath the yoke.
He sunk down in his chariot.
--2 Kings ix. 24.
Let not the fire sink or slacken.
To decrease in volume, as a river; to subside; to become diminished in volume or in apparent height.
The Alps and Pyreneans sink before him.
Syn: To fall; subside; drop; droop; lower; decline; decay; decrease; lessen.
n. plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe
(technology) a process that acts to absorb or remove energy or a substance from a system; "the ocean is a sink for carbon dioxide" [ant: source]
cause to sink; "The Japanese sank American ships in Pearl Harbor"
descend into or as if into some soft substance or place; "He sank into bed"; "She subsided into the chair" [syn: subside]
appear to move downward; "The sun dipped below the horizon"; "The setting sun sank below the tree line" [syn: dip]
embed deeply; "She sank her fingers into the soft sand"; "He buried his head in her lap" [syn: bury]
Longman Dictionary of Contemporary English
vb. (en-simple past of: sink)
Douglas Harper's Etymology Dictionary
past tense of sink (q.v.).