List of acronyms: 0–9

0–9

 * 0D – Zero-dimensional
 * 1, – Onekama, Michigan (word play based on "one, comma")
 * 1AM – Air mechanic 1st class
 * 1D – One-dimensional
 * 2AM – Air mechanic 2nd class
 * 2D – (i) Two-dimensional
 * 2.5D – (p) "Two-and-a-half-dee": two-dimensional computer graphics where some flat images lie in front of others
 * 2G – (i) Second-generation mobile (cellular, wireless) telephone system
 * 2.5G – (p) Second-and-a-half-generation mobile telephone system
 * 2LA – Two letter acronym
 * 2Lt – 2nd lieutenant
 * 3AM – Air mechanic 3rd class
 * 3D – (i) Three-dimensional
 * 3G – (i) Third-generation mobile telephone system
 * 3i – (i) Investors In industry (venture capitalists)
 * 3M – (i) Minnesota Mining and Manufacturing Company
 * 4D – (i) Four-dimensional (usually three spatial plus one temporal dimension, sometimes four spatial ones)
 * 4G – (i) Fourth-generation mobile telephone system
 * 4GL – (i) Fourth-generation programming language
 * 4WD – (i) Four-wheel drive
 * 5D – Five-dimensional
 * 5G – fifth generation mobile telephone system
 * 6D – Six-dimensional
 * 7D – Seven-dimensional
 * 8D – Eight-dimensional
 * 9D – Nine-dimensional