- railroad pen
- railroad worm
- rail-splitter
- railway
- railwayman
- raiment
- Raimondi
- rain
- rainband
- rainbird
- rainbow
- Rainbow
- rainbow bird
- Rainbow Bridge
- rainbow cactus
- rainbow-collar
- rainbow darter
- rainbow fish
- rainbow flag
- rainbow lorikeet
- rainbow nation
- rainbow quartz
- rainbow roof
- rainbow runner
- rainbow seaperch
- rainbow snake
- rainbow trout
- rain cats and dogs
- rain check
- rain cloud
- raincoat
- rain dance
- rain date
- raindrop
- Rainey
- rainfall
- rainforest
- rain frog
- rain gauge
- Rainier
- Rainier III
- raining cats and dogs
- rainmaker
- rain on one's parade
- rain or shine
- rainout
- rain out
- rainproof
- rains
- rain shadow
- rain shower
- rainsquall
- rainstorm
- rain tree
- rainwash
- rainwater
- Rainwater
- rainwater pipe
- rainwear
- rainy
- rainy day
- rainy day, a
- Rainy Lake
- Raipur
- Rais
- raise
- raise a hand against
- raise an objection
- raise a stink
- raise Cain
- raised
- raised beach
- raised bog
- raise eyebrows
- raise havoc
- raise hell
- raise one's hackles
- raise one's sights
- raise one's voice
- raise the ante
- raise the curtain
- raise the devil
- raise the roof
- raisin
- raising
- raising plate
- Raisin River
- raison d'état
- raison d'être
- raisonneur
- raita
- raj
- Raj
- Rajab
- rajah
- Rajahmundry
- RAJAR
- rajas
- Rajasthan
- Rajasthani
- raja yoga
- Rajkot
- Rajput
- Rajputana
- Rajya Sabha
- Rakata
- rake
- Rake's Progress, The
- raked
- rakehell
- rake in
- rake off
- rake-off
- rake over the coals
- raker
- raker tooth
- rake up
- raki
- raking
- raking bond
- raking cornice
- raking course
- raking piece
- rakish
- raku
- rakʿa
- rale
- Raleigh
- Raleigh, Sir Walter
- Ralik Chain
- rall.
- rallentando
- ralliform
- ralline
- rally
- rally around
- rallycross
- rallying
- rallyist
- rallymaster
- rally round
- ralph
- Ralph
- Ralph Roister Doister
- ram
- Ram
- RAM
- ram's-head lady's-slipper
- Rama
- Ramachandra
- ramada
- Ramadan
- ramage
- ram-air turbine
- Rama IX
- Ramakrishna
- ramal
- Ramallah
- ramamorph
- Raman
- Raman effect
- Ramanuja
- Rāmānuja
- Ramanujan
- Ramaphosa
- Ramapithecus
- ramark
- ramate
- Ramat Gan
- Ramayana
- Ramazan
- Rambert
- rambla
- ramble
- ramble on
- rambler
- rambling
- Rambo
- Ramboesque
- Rambouillet
- rambunctious
- rambutan
- RAMC
- ram down someone's throat
- Rameau
- Ramée
- ramekin
- ramen
- ramentaceous
- ramentum
- ramequin
- Rameses
- ramet
- rami
- ramie
- ramification
- ramiform
- ramify
- Ramillies
- ramjet
- rammed earth
- rammel
- rammelsbergite
- rammer
- rammish
- rammle
- rammy
- ramon
- Ramon
- Ramona
- Ramón y Cajal
- Ramos
- ramose
- Ramos gin fizz
- Ramos-Horta
- ramous
- ramp
- rampage
- rampageous
- rampancy
- rampant
- rampart
- rampasture
- ramp down
- Ramphal
- Ramphele
- rampike
- rampion
- ramp up
- ramp-up
- Rampur
- ram raid
- ramrod
- Ramsay
- Ramsden eyepiece
- Ramses
- Ramses I
- Ramses II
- Ramses III
- Ramsey
- Ramsgate
- ramshackle
- ramshorn snail
- Ram Singh
- ramson
- ramsons
- ramstam
- ramtil
- ramulose
- ramus
- ran
- Ran
- RAN
- Rancagua
- rance
- ranch
- ranch dressing
- rancher
- rancheria
- rancherie
- ranchero
- ranchette
- ranch house
- Ranchi
- ranchman
- ranch mink
- rancho
- Rancho Cordova
- Rancho Cucamonga
- Rancho Palos Verdes
- rancid
- rancor
- rancorous
- rancour
- rand
- Rand
- Rand, Ayn
- Randall
- Randallstown
- randan
- randem
- Randers
- randlord
- rando
- Randolph
- random
- random access
- random-access
- random access memory
- random-access memory
- random coil
- random error
- randomization
- randomize
- random line
- randomly
- random number
- random number generator
- random numbers
- random rubble
