[zacharydanger]

Not in the parlance of accounting.

http://www.accountingcoach.com/blog/what-does-m-and-mm-stand...

[trymas]

Sounds right, though it's confusing when many people use this notation differently. Is there any standard? though, I guess, it's off-topic.

[kbody]

True, yet further down the article we see: "What does $1M buy you?", which must be a typo.