Verb (5-dan, く, transitive)
1.  to pull out;  to draw out;  to extract;  to unplug;  to weed
2.  to omit;  to leave out;  to go without;  to skip
Auxiliary verb (5-dan, く)
3.  to do to the end;  to carry through
Verb (5-dan, く, transitive)
4.  to let out (e.g. air from a tyre);  to drain (e.g. water from a bath);  to empty
5.  to pick out;  to choose;  to select;  to extract
6.  to pilfer;  to steal
7.  to remove;  to get rid of;  to take out
8.  to pass;  to overtake;  to outstrip;  to get ahead of
9.  to pierce;  to break through;  to go through
also written 貫く
10.  to cut out (a shape);  to create (a pattern) by dying the surrounding area
11.  to seize;  to capture;  to reduce
12.  to scoop (a story)
13.  to take out (an opponent's stones; in go)
Verb (5-dan, く)
Slang
Vulgar
14.  to masturbate (of a male);  to ejaculate (while masturbating)
15.  to take (a photo);  to record (video)