Student or Learner
Does it mean there is no need to worry or something is not a big deal for instance? Thanks.
In AusE, we use 'm' for million, 'bn' for billion: $25m, $25bn. Also 25k is used by some newspapers for 25,000.
Is that different elsewhere?
It's true that M (Mega) also means a million in SI units, as opposed to m (milli), but those terms take an affix, eg. MB (Megabyte), mm (millimeter), etc.
'AusE' means Australian English.
If you click on Raymott's Member Info you'll see that he is a native and resident of Australia.