BTW (by the way) is an acronym. Anytime you take just the initials of a phrase and use those as capital letters, that is an acronym (literally meaning "high name" because capitol letters are higher).
"SCUBA" is the abbreviation (really the acronym) for "Self Contained Underwater Breathing Apparatus".
An acronym or abbreviation. When it is a name, then it is called that person's "Initials", as in "E.B White".
Radar is the acronym for Radio detecting and ranging.
Math is an abbreviation of mathematics: it is not an acronym. So the h does not stand for anything!
ARP is not an abbreviation, but rather an acronym. It stands for several different things but the most common is Address Resolution Protocol which is used in computer networking.
It is an abbreviation; an acronym is an abbreviation which forms a word, but 'USF' is not so.
acronym
British Petroleum. Technically it's an acronym not an abbreviation. An abbreviation is a shortened version of a word, such as abbr. for abbreviation. An acronym is any combination of abbreviations, contractions or initialisms. BP is an initialism and is therefore an acronym.
BTW.
btw
No, abbreviation.
before
Emo is not an acronym, it is just an abbreviation for emotionally unstable.
It's not an acronym, its an abbreviation for Guantanamo Gay.
not always, but sometimes yes. You can say that MTV is an abbreviation for Music Television, and you can say that is an acronym for Music Television. However you cannot say the state abbreviation for California, CA, is an acronym for California.
Maybe
polio is an abbreviation for poliomyelitis