QZ

QZ stands for:

• Indonesia AirAsia, Indonesian airline ( IATA code )
• Quarter of the number (1, 2, 3 or 4), identified a quarter
• QZ algorithm, numerical method for the solution of the generalized eigenvalue problem
• Quality and reliability, leading German journal in quality management

QZ as distinguishing signs on license plate:

• Belgium: small trailer with number plates

• Disambiguation
• Abbreviation