-ru Godan/u-verb

1. to cut; to cut through; to perform (surgery)
2. to sever (connections, ties)
3. to turn off (e.g. the light)
4. to terminate (e.g. a conversation); to hang up (the phone); to disconnect
5. to punch (a ticket); to tear off (a stub)
6. to open (something sealed)
7. to start
8. to set (a limit); to do (something) in less or within a certain time; to issue (cheques, vouchers, etc.)
9. to reduce; to decrease; to discount
10. to shake off (water, etc.); to let drip-dry; to let drain
11. to cross; to traverse
12. to criticize sharply
13. to act decisively; to do (something noticeable); to go first; to make (certain facial expressions, in kabuki)
14. to turn (vehicle, steering wheel, etc.)
15. to curl (a ball); to bend; to cut
16. to shuffle (cards)
17. mahjong to discard a tile
18. to dismiss; to sack; to let go; to expel; to excommunicate
19. to dig (a groove); to cut (a stencil, on a mimeograph)
20. to trump
21. Go to cut (the connection between two groups) (sometimes キる)
22. to start a fire (with wood-wood friction or by striking a metal against stone) (also written as 鑽る)
23. to draw (a shape) in the air (with a sword, etc.)

suffix

24. to do completely; to finish doing (after the -masu stem of a verb)
25. to be completely ...; to be totally ...; to be terribly ... (after the -masu stem of a verb)
26. to do clearly; to do decisively; to do firmly (after the -masu stem of a verb)