Meaning and concept of abbreviation – An abbreviation is any symbol, letter or letters that replace a word or an expression.
In terms of classification, the abbreviation is a grammatical subcategory existing in the Portuguese language. Examples of other subcategories: adjective, adverb, article, pronoun, noun, etc.
In other words, the abbreviation has, in the Portuguese lexicon, its own place in the grammatical definition of a set of words.
Examples of common abbreviations:
But, contrary to what we can judge, the set of words belonging to this grammatical form is vast. It is used in units, names, titles, acronyms, companies, organizations, countries, etc.
Examples:
CEO is used in business as an acronym for Chief Executive Officer.
hPa is used in physics as a symbol for hectopascal.
WAN is used in computing as an acronym for wide area network.
NATO stands for North Atlantic Treaty Organization.
Note: It comes from the Italian abbreviation.