It could mean Republican, as in Irish Republican Army, or Retirement, as in Individual Retirement Account, or Reorganization, as in Indian Reorganization Act. Lots of acronyms.
The "R" in MRS GREN stands for "Reproduction." MRS GREN is an acronym used to remember the 7 life processes: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, and Nutrition.
The initials EF likely refer to "Epistle to the Ephesians," a letter in the New Testament of the Bible traditionally believed to have been written by the apostle Paul to the Christian community in Ephesus.
"Rur2r" does not have a standard meaning or widely recognized acronym. It could be a short form or abbreviation specific to a certain context, such as a username or code.
There are 120 combinations of 5 items, which can be calculated using the formula nCr = n! / r!(n - r)!.
Unknown or other. This could mean many things. Most likely in every case, someone asked "WHAT RELIGION R U" and the person said something like "Agnostic" or "Druidic" or "Taoist" and the person who asked is like "WUT? WHY U NO SAY CHRISTIAN OR CATHOLIC?" and writes the first three letters of UNKnown.
retirement
The R stands for Retirement. IRA means Individual Retirement Account (or Individual Retirement Arrangement).
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern R--IRA-. That is, seven letter words with 1st letter R and 4th letter I and 5th letter R and 6th letter A. In alphabetical order, they are: retiral
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -IRA--R. That is, seven letter words with 2nd letter I and 3rd letter R and 4th letter A and 7th letter R. In alphabetical order, they are: mirador
Survey, read, review
Depends whether you're referring to an American retirement plan or an Irish terrorist organisation. Either "retirement" or "republican".
Reverse
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern IRA-ER. That is, six letter words with 1st letter I and 2nd letter R and 3rd letter A and 5th letter E and 6th letter R. In alphabetical order, they are: irater
romantic
RADIUS
Yes, you will receive a 1099-R for and IRA Rollover. Don't forget to attach to your taxes.
Rack rate is a hotel accommodations term. It begins with the letter R.