The following table lists examples of suffix forms that are primary street suffix names, common street suffixes or suffix abbreviations, and recommended official Postal Service standard suffix abbreviations. An acronym is a series of initials used to represent a longer phrase.

USPS Marketing Mail Eligibility Decision Tree This online-only Dictionary of Abbreviations, exclusive to Oxford Reference Online, includes over 100,000 abbreviations and acronyms in alphabetical and numerical order, including the world's airports, airlines, currencies, astronomical signs and symbols, atomic numbers, and stocks codes, as well as computer, country, financial, medical, militar.1 For instance, if you are using the abbreviation for an organization, you would spell out the name first: 'The organization is called Poetry for Poetrys Sake (PPS).

Generally, you follow the full name with the abbreviation in parenthesis.

Designing Letter and Reply Mail (PUB 25) In formal writing, you must always spell out the abbreviation the first time you use it.

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