Wikipedia:ABB

This guideline covers the use of abbreviations, including initialisms, acronyms, contractions and shortenings, in the . An initialism is usually formed from some or all of the initial letters of words in a phrase. In some variations of English, an acronym is considered to be an initialism which is pronounced as a word (e.g. NATO), as distinct from the case where the initialism is said as a string of individual letters (e.g. "UN" for the United Nations). Herein, the term acronym applies collectively to initialisms, without distinction that an acronym is said as a word.

Avoid making up new abbreviations, especially acronyms. For example, "International Feline Federation" is good as a translation of Fédération Internationale Féline, but neither the anglicization nor the reduction IFF is used by the organization; use the original name and its official abbreviation, FIFe.

If it is necessary to abbreviate in "small spaces" (infoboxes, navboxes and tables), use widely recognized abbreviations. As an example, for New Zealand gross national product, use NZ and GNP, with a link if the term has not already been written out: NZ GNP; do not use the made-up initialism NZGNP).

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