What does Rar stand for?

Rare Records - Record label

Aviaross - Russian Federation - ICAO designator (FAAC)

Bahing - Language code (ETLW)

RADAR Arrival Route - Aviation (DA)

RADAR Augmentation Reliability (MCD)

Radiator Air Restriction - Automotive engineering

Radio Acoustic Ranging

Random Access Read (SAUS)

Random Age Replacement

Rapid Access Recording (IEEE)

Rarely (SAUS)

Rarotonga - Cook Islands - Airport symbol (OAG)

Rarotonga - Cook Islands - Seismograph station code, US Geological Survey (SEIS)

Rarotongan - GeoNet three-character language code (GEON)

Rat Insulin Receptor (STED)

Raymond & Robitaille - NCIC firearms make code (NCIC)

Read Around Ratio (SAUS)

Reader Address Register - Computer science (VLIE)

Read-Only Memory Address Register - Computer science (VLIE)

Real Aperture RADAR

Reallexikon der Aegyptischen Religionsgeschichte - Berlin - A publication (BJA)

Reasonable Assumed - or Assured Resources - Minerals

Reasonably Assured Resources (ALPHA)

Record and Report

Redevelopment Area Resident

Reduced Aspect Ratio

Reflect Array Radar (SAUS)

Regular Army Reserve

Relative Accumulation Rate - Ecology

Relative Adherence Ratio (DB)

Released area Register (SAUS)

Reliability Action Report - or Request

Reliability Action Request (SAUS)

Reliability Analysis Report (SAUS)

Remedial Action Report - Office of Environmental Management, Department of Energy (DEEM)

Remote Arm Reset (MCD)

Remove and Replace (IAA)

Remove Audible Ring

Rendezvous and Recovery

Repair and Retrofix (IAA)

Repair as Required (AAG)

Report Authorization Record - or Request (AAG)

Report Authorization Request (SAUS)

Request Radar Blip Identification Message (SAUS)

Reserve Asset Ratio - Banking (ADA)

Residential Appraisal Report - Real estate (EMRF)

Resource Allocation Recommendations - Military

Retinoic Acid Receptor - Biochemistry

Return Address Register

Revenue Agent's Report - IRS

Revenue and Retrieval (IAA)

Revise as Required (MCD)

Rhodesian African Rifles - Military unit

Right Arm Reclining (STED)

Right Arm Recumbent - Medicine (AAMN)

ROM - Read-Only Memory Address Register

Rotate Accumulator Right (SAUS)

Routing and Recording (IAA)

Royal Army Reserve - British

Royal Australian Regiment (VNW)

Rules and Regulations (IAA)

Run-at Rate - Automotive engineering

Runway Acceptance Rate (CTAS)

Rural Area Redevelopment