There is no definitive, single abbreviation for office. See some following examples:
O - Governmental » FBI Files
OFF - Office Governmental » Military
OFC - Office Governmental » United Nations
OFC - Governmental » NASA
OFC - Miscellaneous » USPS
OFC - Business » General
Source: Abbreviations.com
On the Nasdaq exchange Microsoft is abbreviated "MSFT" In regular conversation Microsoft is commonly abbreviated as "MS" with people referring to Microsoft windows as "MS windows" or office as "MS office" On online forums it is not uncommon to see it abbreviated as "M$". The dollar sign is meant as a reference to Microsofts history of cutthroat business practices.
It doesn't appear to be a rank, it's probably "Office of the President"
HACO is abbreviated to either Human Adaption Countermeasures Office or Humanitarian Assistance Coordination Office or it could also stand for Hunter Aircraft Corp.
This is often abbreviated as r.This is often abbreviated as r.This is often abbreviated as r.This is often abbreviated as r.
it is abbreviated with um
It is abbreviated M.N.
According to the US Government Printing Office's (GPO) Style Manual the summer months are never abbreviated, but always spelled to avoid confusion.So you must spell out June and July according the GPO.August, a summer month, can be abbreviated to Aug.September, again a summer month, can be abbreviated to Sept.May, though not a summer month, is never abbreviated since it is only three letter long.These are the GPO style guide lines.In day to day practice though June is often abbreviated to Jun. and July is abbreviated to Jul., but as you can see a typo if one letter can cause confusion as to which month is meant.
It is abbreviated to the "web".
It is abbreviated to the "web".
Syria is abbreviated as SYR.
ORG is how organization is abbreviated.
Decibel is abbreviated as "dB."