ATM machine (Automatic Teller Machine machine)
LCD display (Liquid Crystal Display display)
(but LED display is okkay: Light Emitting Diode display)
AF, RF, IF frequency ({Audio, Radio, Intermediate} Frequency frequency)
OPEC countries (Organization of Petroleum Exporting Countries countries)
PIN number (Personal Identification Number number)
START treaty (STrategic Arms Reduction Treaty treaty)
UPC code (Universal Product Code code)
VAT tax (Value Added Tax tax. Careful, some politician might just try to tax a tax.)
VIN number (Vehicle Identification Number number)
"Rate of speed" (speed of movement speed)