A, second to none. In the US, 220 is thought of as high power, so something being called 220 means high test, quality, etc.
B, a 240 volt mains circuit. Early on in house wiring, 110 and 220 were often used. The US upgraded to a 120/240 standard, though still commonly referred to as 110 and 240 respectively. In Europe many times even recently the standard was 220 with many countries adopting a new 230 standard, so may be colloquially referred to as 220

If you google this. the answer is yes