Fill in the blanks with the most appropriate option:-

RAW is a/an ………… of Research & Analysis Wing.

acronym

The correct option to fill in the blanks is acronym.

An acronym is a word formed from the initial letters of a phrase or word. RAW is an acronym for Research and Analysis Wing. It is the most appropriate word to use in this context, as it describes the way in which the word RAW is formed.

The other options are not as appropriate:

• Homonym is a word that is spelled the same as another word but has a different meaning. It is not accurate to use "homonym" in this context, as the words RAW and Research & Analysis Wing do not have different meanings.
• Malapropism is a mistake in speech or writing in which a word is mistakenly used in place of a similar-sounding word with a different meaning. It is not accurate to use "malapropism" in this context, as the words RAW and Research & Analysis Wing do not sound similar.
• Collocation is a combination of words that are often used together. It is not as appropriate as "acronym", as it does not convey the same sense of brevity or conciseness.