Countable Nouns Starting with R and Containing BO

Explore 66 verified English countable nouns starting with R and containing BO, including Robot, Ribbon, Rainbow, Rebound, Reboot, Roundabout and Rowboat. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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rainbow
rainboot
rainbowfish
rasbora
rabona
rambouillet
rabboni
rattlebox
rawbone
rackabones
ragbolt
rajambot
rebound
reboot
redbone
reebok
rebounder
rentboy
redbook
rebore
reboil
rebozo
rehoboam
rebody
renosterbos
reboation
rhomboid
rhombohedron
rhebok
rhomboideus
rhenosterbos
rhombos
rhombozoan
ribbon
ribosome
riverboat
ribonucleotide
ribozyme
ribonuclease
ribonucleoprotein
ringbone
ribonucleoside
ribbonfish
ringbolt
ribbonwood
robot
roundabout
rowboat
rooibos
robocall
roustabout
roboticist
robocaller
rosebowl
rocambole
roborant
rouseabout
roundaboutation
rulebook
runabout
rudeboy
rubout
ruboff
rubboard
rumbo
rubbaboo

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