I our company's case I understood it to mean "member". I was the contact person for our Limited Loss Company, and MBR was inserted after my name in the official EIN document.
Furthermore, an IRS document found in the internet has this:
"A single member or sole member LLC account will contain the words "SOLE MBR" or "SINGLE MBR" within the Sort Name line as shown on CC INOLES"
So: MBR = member.
MAR-memory address register used stored the address of the memory loaction MBR- memory buffer register is the actully data.
When MBR fails then the operating system will not load.
"ein Ei" is "an egg" in English.
Depending on context, ein can be tanslated as a, an or one
Ein Breira = "there's no choice"
Ein Volk means "One people" ein Reich means "one nation" ein Führer means "one leader"
One people, one Empire, One Leader
"Ein kleines" means literally, "a little."
One fight/battle, one victory.
Ein is more probable German that French, means "one".
Full form of MBR is Master Boot Record in computer hardware field...
Dobist ein froine is not proper German but based on the phonetics, I'm going to guess that what you mean is Du bist ein Freund, which translates as you are a friend.