Shot size

Sorry, I'm asking because I honesty don't know.
When game and fish regs say; "no shot larger than 2 shot," Does that mean the size of shot or the number?
I understand 1 shot would be bigger than 3 shot, but 3 is a bigger number than one. lol
Am I over thinking this? I just want to be legal.
Thanks
When game and fish regs say; "no shot larger than 2 shot," Does that mean the size of shot or the number?
I understand 1 shot would be bigger than 3 shot, but 3 is a bigger number than one. lol
Am I over thinking this? I just want to be legal.
Thanks