Countable Nouns Starting with R and Containing TO

Explore 165 verified English countable nouns starting with R and containing TO, including Regulator, Repository, Refrigerator, Rooftop, Reactor, Realtor and Repertoire. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with RA20 words
radiator
raptor
rainstorm
radioisotope
ragtop
raptorial
rato
ratoon
radiophoto
rabbitoh
ragstone
radioautograph
rabbito
ratiocinator
rabato
ratton
raspatory
rachiotomy
radiocinematograph
ratooner
Starts with RE24 words
restoration
regulator
repository
refrigerator
reactor
realtor
repertoire
receptor
retort
respirator
rector
restock
restorative
resistor
reflector
rectory
refractory
repertory
resto
restorer
retouch
resonator
reformatory
retractor
Starts with RH11 words
rhinestone
rhetorician
rheumatologist
rhetor
rhytidectomy
rhizotomy
rhyton
rhizoctonia
rhodochiton
rheotome
rheoreceptor
Starts with RI16 words
ringtone
rigatoni
ristorante
rialto
ridgetop
risorgimento
ringtoss
ripstop
ristretto
ritenuto
ritornello
ribstone
ribston
ridotto
rifacimento
rispetto
Starts with RO16 words
rooftop
rotor
rotator
rotorcraft
roto
rototiller
rotoscope
rotogravure
rolltop
rotolo
rotovator
rotavator
roton
rotograph
roestone
rondoletto
Starts with RU7 words
rubato
runestone
rusticator
rubstone
rudderstock
rubricator
russificator

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWordsVocabulary HubPositive WordsNegative Words
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.