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Acronyms and abbreviations in English.

An acronym is a word or name formed as an abbreviation from the initial components of a phrase or a word, usually individual letters. There are no universal standards for the multiple names for such abbreviations or for their orthographic styling.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are 197 terms in this directory beginning with the letter R.
R
repeatable
R &D
research and development
R.
(in titles) Royal
R.C.Ch.
Roman Catholic Church
R&D
Research & Development
R&M
Reliability & Maintainability
R2RC
Right to Repair Campaign
RA
1. Research Assistant.
2. Resident Assistant.
3. Radiocommunications Agency.
RAAF
Royal Australian Air Force
RAB
Resource Accounting and Budgeting
RABS
Restricted Access Barrier Systeme
RAC
Royal Automobile Club
RACE
Rotary Atkinson Cycle Engine
RACY
Rotary Air Control Valve
RAD
1. Requirements Analysis Document.
2. Rapid Application Development.
RADEF
Road Administration Data Exchange Format
Radiol.
in Radiology
RAIB
Rail Accident Investigation Branch
RAK
Random Act of Kindness
RAKE
Radio Activated Key Entry
RAM
Random-Access Memory
RAPRA
Rubber and Plastics Research Association
RAS
Regional Air Services
RASE
Royal Agricultural Society of England
RASP
Risk Assessment for Strategic Planning
RAW
Rigid Angled Wall
RBCS
Robotics, Brain and Cognitive Sciences (Istituto Italiano di Tecnologia)
RBS
Really Big Screen
RBT
Roller Brake Test
RBTH
Roller Brake and Test Hall Project
RC&S
Regulations, Codes & Standards
RCA
Radio Communications Agency
RCAR
Research Committee for Automobile Repairs
RCAST
Research Center for Advanced Science and Technology
RCEP
Royal Commission on Environmental Pollution
RCFA
Root Cause Failure Analysis
RCG
Recent College Graduate
RCGP
Royal College of General Practitioners
RCI
Royal Canadian Institute
RCID
Resource Centre for Innovation and Design
RCLW
Rated Cargo and Luggage Weight
RCM
Reliability Centred Maintenance
RCP
Royal Canadian Police
RCPN
Research Center for Pharmaceutical Nanotechnology
RCRA
Resource Conversation and Recovery Act (USA)
RCT(s)
randomized clinical trial(s)
RCTT
Republican Centre for Technology Transfer (Belarus)
RCV
Rear Collection Vehicle
RD
route distinguisher
RDA
Regional Development Agency
RDC
Rib Deflection Criterion
RDF
1. Radio Direct Finding.
2. Record Definition Field.
3. Refuse Derived Fuel.
4. Repeater Distribution Frame.
5. Resource Description Framework.
RDP
Recoverably Deletable Predicate
RDR
Radio Communications Agency (Netherlands)
RDS
Radio Data System
RDS-TMC
Radio Data System
RE
1. Regarding.
2. Reunion.
3. Renewable Energy.
4. ( re ) - with reference to
REACH
Registration, Evaluation & Authorisation of Chemicals
Rec.
(in titles) Record
RECOUP
Recycling of Used Plastic Containers (Charity)
redupl.
reduplicating
Ref.
(in titles) Reference
refash.
refashioned, -ing
refl.
reflexive
Reg.
1. (in titles) Register
2. ( reg. ) - regular
REIA
Regulatory & Environmental Impact Assessment
REIO
Regional Economic Integration Organisation
REME
Royal Electrical and Mechanical Engineers
Reminisc.
(in titles) Reminiscence, -s
REMO
Reciprocal Enforcement of Maintenance Orders
REMOVE
Requirements for Overloaded Vehicles in Europe
REMSA
Recovery Equipment Manufacturers and Suppliers Association
Rep.
(in titles) Report, -s
REPAC
Regional Environment Protection Advisory Committee (ENVT Agency)
repr.
representative, representing
RES
Radio Equipment and Systems
Res.
(in titles) Research
RESSG
Rural Economy and Society Study Group
Rev.
1. (in titles) Review
2. ( rev. ) - revised
RF
Radio-Frequency
RFC
Request For Comments
RFD
Request For Discussion
RFG
Reformulated Gasoline
RFID
Radio Frequency Identification Device
RFO
Recovered Fuel Oil
RFT
Request For Thinking
RFWS
Run-Flat Warning System
RHA
Road Haulage Association
Rhet.
in Rhetoric
RHIDES
Road Haulier Identity System
RHIP
Rank HasIts Privileges
RHO
Radiant Heat Output
RHS
1. Revitalising Health and Safety.
2. Royal Horticultural Society.
RI
Regular Index
RIA
Regulatory Impact Assessment
RID
(Regulations on the International Carriage of Dangerous Goods by Rail)
RIDDOR
Reporting of Injuries, Diseases and Dangerous Occurences Regulations
RIP
Reach Implementation Project
RISD
Rhode Island School of Design
RKE
Remote Key Entry
RL
Real Life
RLAB
Rolls Like A Buffalo
RLCO
Real Life Conference
RLS
Recursive Least Squares
RME
Rapeseed Methyl Ester
RMIF
Retail Motor Industry Federation
RMTD
Radioactive Materials Transport Division
RNA
Ring, No Answer
RNAi
Interference RNA
RNZCGP
Royal New Zealand College of General Practitioners
RO
Romania
ROARS
Relationships Opportunities Academics Rigor And Safety
ROCE
Return on Capital Employed
ROE
Rest of Europe
ROFFNA
Rolling On the Floor For No Apparent Reason
ROFFNAR
Rolling on the Floor for no Apparent Reason
ROFL
Rolling On the Floor Laughing
ROFLAH
Rolling On the Floor Laughing And Holding My sides
ROFLAS
Rolling On the Floor Laughing And Scaring The Cat
ROFLGO
Rolling On Floor Laughing Guts Out
ROFLMA
Rolling On the Floor Lauging My Ass Off Out Loud
ROFLMAO
Rolling on Floor Laughing My Ass Off
ROFLOL
Rolling On the Floor Laughing Out Loud
ROFLOLBAG
Rolling on the Floor Laughing Out Loud Bustinga Gut
ROFLOLVH
Rolling On the Floor Laughing Out Loud Very Hard
ROFLWM
Rolling On the Floor Laughing--Wet My Knickers
ROFPML
Roll On Floor Pissing Myself Laughing
ROFTTP
Rolling On the Floor Trying To Put Out Flames
ROHS
Restrictions on Hazardous Substances
ROI
return on investment
ROK
Republic of Korea
ROLC
Routing Over Large Clouds
ROM
Read-Only Memory
Rom.
Roman, -ce, -ic
ROP
Roll Over Protection
ROPS
Roll-over Protection Stability
RORO
Roll-on-Roll-off Container/Vehicle
ROSCO
Rolling Stock Leasing Company
RoSPA
Royal Society for thr Prevention of Accidents
ROTBA
Reality On The Blink Again
ROTF
Rolling On The Floor
ROTFL
Rolling On The Floor Laughing
ROTFLY
Rolling On The Floor Laughing Yet Somehow Still Typing
ROTFST
Rolling On The Floor Scaring The Cat Laughing My Ass And Other Bod
ROTM
Right On The Money
RPAT
Research Project Application Tool
RPC
Reduced Pollution Certificate
rPCR
Realtime Polymerase Chain Reaction
RPG
1. Regional Planning Guidance.
2. Role Playing Game.
RPM
Report Project Management
RPRF
Research Participant Receipt Forms
RPS
Research Paper Spot
RQAS
Radiocommunications Quality Assurance Scheme
RR
Radio Regulations
RRR
Recycling, Re-Use and Recovery
RSC
1. Royal Society of Canada.
2. Roll Stability Control.
3. Royal Smithfield Club.
4. Radio Spectrum Committee.
RSI
Repetitive Strain Injury
RSL
Roadside Safety Library (USA)
RSN
Real Soon Now
RSP
Roll Stability Program
Rsr.
Researcher
RSS
1. RDF Site Summary.
2. Rich Site Summary.
3. Really Simple Syndication.
4. Roll Stability Support.
RSVP
Reservation Protocol
RSW
Rigid Sil Wall
RT
Real Time
RTD
1. Research and Technology Development.
2. Road Transport Directive.
RTFA
Read The fucking Article
RTFFAQ
Read The fucking / Friendly Frequently Asked Questions
RTFI
Read The Friendly Instructions
RTFM
Read The Friendly Manual
RTFMS
Read The friendly Manual, Sir(from the military)
RTFO
Renewable Transport Fuel Obligation
RTFQ
Read The Friendly Question
RTFS
Read The Friendly Source
RTFT
Read The fucking Thread
RTI
1. Road Transport Informatics.
2. Real Time Interruption.
RTITB
Road Transport Industry Training Board
RTM
Requirements Traceability Matrix.
RTO
Road Traffic Ordinance
RTPA
Restrictive Trade Practlces Act
RTPI
Royal Town Planning Institute
RTS
Read The Screen
RTTE
Radio & Telecommunication Terminal Equipment
RTTT
Road Transport & Traffic Telematics
RU
Russian Federation
RUBP
Ribulose-1,5-bisphosphate
RUC
Road User Charging
Rum.
Rumanian
RUMF
are you Male or Female
Russ.
Russian
RV(AW)
Road Vehicles (Authorised Weight)
RVIA
Recreation Vehicles Industry Association
RVLR
Road Vehicle Lighting Regulations
RVP
Reid Vapour Pressure
RVR
1. Remote Video Response.
2. Reactor Vessel Rupture.
RW
Rwanda
RWD
Rear Wheel Drive

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