"Oco" can refer to different things depending on the context. In some cases, it is used as an abbreviation for "on co," which might relate to business or partnerships. In other contexts, "oco" is associated with certain cultural references, such as the name of a place or a concept in various languages. If you have a specific context in mind, please provide more details for a more accurate answer.
"OCO" on a U.S. Treasury check stands for "Original Check Only." This designation indicates that the check is the original payment and not a duplicate or reissue. It is often used in the context of ensuring that the check is valid and has not been previously cashed or replaced.
http://www.bls.gov/oco/ocos298.htm
The abbreviation PA can stand for a few things, depending on the context. It can mean Posteroanterior, Physician Assistant, or Pulmonary Artery.It could possibly stand for physician's assistant.http://www.bls.gov/oco/ocos081.htm
http://www.bls.gov/oco/ocos066.htm
go to http://www.bls.gov/oco/ocos086.htm
OCO is the chemical formula for carbon dioxide, a colorless and odorless gas essential for plant growth and respiration in animals. It is a greenhouse gas that contributes to global warming when present in excessive amounts in the atmosphere.
http://www.bls.gov/oco/ocos027.htm#training
You will find the answer here: http://www.bls.gov/oco/ocos042.htm#emply
See http://www.bls.gov/oco/ocos069.htm#outlook
Here is the occupational outlook for video editing in generalhttp://www.bls.gov/oco/ocos091.htm
A dry waller is the person who hangs dry wall/sheetrock/plasterboard.http://www.bls.gov/oco/ocos205.htmdrywall installer/hanger
Here is a web site that you may find very helpful. http://stats.bls.gov/oco/ocos156.htm