A street suffix may be the word that follows the a street to help describe that street. Sometimes it might be used only for naming, not for description, such as, Street is easily the most common, Avenue being second.
Within the Uk, councils maintain lists of in your area approved suffixes for brand new roads. For instance, Haringey Council working in london provides this guidance:
Their list consists of 211 suffixes recognised through the U . s . States Postal Service. Generally
used street abbreviations within brackets.
Guidelines for street and building naming and numbering