The initial idioms of the letter R

rinse out of	rinse with
rinse	go Rinso
riot	riot of color
riotous living	rip
rip apart	rip away
rip down	rip (someone or something) to shreds
rip in half	rip into
rip off	rip on
rip on someone	rip out of
rip snorter	rip-snorting mad
rip someone off	rip something off
rip to	rip up
ripe for	ripe old age
ripen into	ripen up
ripen	ripe