(Main list of acronyms)
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Q0–9 Q1 – (p) First Quarter Q2 – (p) Second Quarter Q3 – (p) Third Quarter Q4 – (p) Fourth Quarter
QA QA – (s) Qatar (FIPS 10-4 country code; ISO 3166 digram) Qantas – (a) Queensland And Northern Territory Aerial Services QAP – (a) Quadripartite Advisory Publication ("kwapp") QAR – (s) Qatari rial (ISO 4217 currency code) QAT – (s) Qatar (ISO 3166 trigram)
QB QB – (p) Quarterback (football)
QC QC – (i) Quality Control – (s) Québec (postal symbol) – (i) Queen's Counsel QCA – (i) Qualifications and Curriculum Authority – Quality Council of Alberta QCD – (i) Qualified Charitable Distribution - (p) Quantum ChromoDynamics
QD QD – (i) quaque die (Latin, "daily") QDOS – (p) Quick and Dirty Operating System ("cue-doss") QDR – (i) Quadrennial Defense Review QDRO – (a) Qualified domestic relations order ("quad-ro")
QE QED – (p) quantum electrodynamics – (i) quid es demonstrata or quod erat demonstrandum (Latin, "that proves it" or "which was to be demonstrated") QEH – (i) Queen Elizabeth's Hospital
QF QFE – (i) Quoted For Emphasis – (s) Local ground level atmospheric pressure (aeronautical Q code)
QH QHE (i) Quantum Heat Engine QHP (s) Honorary Physician to the Queen
QI QID – (i) (Latin, "four times daily") QIP – (a) Quadrilateral Interoperability Programme (ancestor of MIP; "quip")
QK QK – (s) Air Canada Jazz (IATA airline designator)
QL QLD – (p) Queensland, (Australia) (postal symbol)
QM QM – (i) Quality Management – Quantum Mechanics – Queen Mother
QN QNH – (s) Regional mean sea level atmospheric pressure (aeronautical Q code)
QO QOS (or QoS) (i) Quality of service Queen of the South F.C. (Scottish football team)
QP QPR (i) Quality-Price Ratio (wine evaluation term) Queens Park Rangers F.C. (English football team) QPS – (i) Quark Publishing System
QR QR – (i) QR code – Quake Rally – Qualitative Reasoning – Queensland Rail – Queen's Rangers – Quick Release – Quiet Riot – (s) Qatar Airways (IATA airline designator)
QS QS – (i) quantum sufficit (Latin, "as much as suffices") QSCAT – (p) Quick Scatterometer satellite QSL – (i) Québec Sign Language QSO – (i) Quasi-Stellar Object QSTAG – (p) Quadripartite Standardization Agreement ("cue-stag")
QT QT – (i) Quentin Tarantino – QuickTime – QuikTrip – QT (cute) Software QTE - Quick Time Event QTT - (i) Qualified Treatment Trainee - in Wisconsin, a designation for a mental health provider in training as defined in DHS 35.03(17m)
QU qu – (s) Quechua language (ISO 639-1 code) Quango – (p) (British Commonwealth) QUasi Autonomous Non-Governmental Organisation Quasar – (p) Quasi-stellar radio source QUB – (i) Queen's University Belfast QUC – (i) Queens University of Charlotte que – (s) Quechua language (ISO 639-2 code) QUIET – (p) Q and U Imaging ExperimenT (Q and U are the Stokes parameters of the CMBR polarization)
QV qv – (i) quod vide (Latin "which see") QVC – (i) "Quality, Value, Convenience" (home shopping channel)
QW QWG – (i) Quadripartite Working Group ("qwig") QWGAOR – (i) Quadripartite Working Group on Army Operational Research ("qwig-a-o-r")
QX QX - (i) Quality of Experience
QZ QZ – (s) Awair (IATA airline designator)