Ri·kers Island 
(rīkərz)
(rīkərz) An island in the East River off the south coast of the Bronx, New York City. Part of the Bronx borough, it is the site of a large jail facility.
- on target
- Ontario
- Ontario
- on tenterhooks
- on the alert
- on the back burner
- on the ball
- on the barrel
- on the barrel/barrelhead
- on the barrelhead
- on the beam
- on the blink
- on the brain
- on the breadline
- on the bubble
- on the bum
- on the button
- on the carpet
- on the cheap
- on the coattails of
- on the contrary
- on the cuff
- on the cusp
- on the defensive
- on the dole