I think it is killjoy or kilojoules or probably King James.
The abbreviation for kilojoules is kJ.
Computer is not an abbreviation. It is the full form of the word.
"Sorry" is not an abbreviation. That is the "full form"
The correct abbreviation for kilocalorie is kcal, however, this is not a recognised SI unit and should be replace with kJ (kilojoule) 1 kcal=4.18 kJ.
KJ-52 (Jonah Sorrentino) is a Christian rapper, known for two songs addressed to another rapper, Eminem. The name stems from “KJ,” which was an abbreviation of his old rap name and according to KJ, also stands for “knowledge and justification. “52” (pronounced “five-two”) represents the miracle of the five loaves and two fish as told in The Bible. KJ-52 feels he is spreading the word of the Lord in much the same way Jesus shared the food in the story.
Exam is an abbreviation of the word examination.
The word "slang" is not an abbreviation. There is no "full form" of any of the letters.
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The word "esp" is an abbreviation. The full form is the word "especially".
English is neither acronym nor abbreviation. It is the 'full form'.
Madam is the full word. The abbreviation is Mme if you wanted to use it that way. You might be asking about the word 'mademoiselle', which is a French word.
The most common abbreviation for finish is FIN. This abbreviation is not used widely though as most people will write out the full word instead of using FIN.