Contractions, Abbreviations and Acronyms
Contractions, abbreviations and acronyms are an integral part of today’s communication.
Contractions, as they seem more friendly and can speed things up.
HOWEVER, contractions should NOT be used in formal business letters or other official communications.
Abbreviations and acronyms are necessary in chats and texting.
But they should be used with caution in formal business letters and other official communications.
From the OXFORD DICTIONARY:
contraction (noun): a short form of a word “He's” may be a contraction of “he is” or “he has.”
abbreviation (noun): (of/for something) a short form of a word, etc.
acronym (noun): an abbreviation formed from the initial letters of other
words and pronounced as a word (e.g. ASCII, NASA, LOL).
I’ve only included information on contractions in English here, as abbreviations and especially acronyms are available everywhere on the Internet.