C1 Street Suffix Abbreviations from USPS. The keys represent the USPS standard abbreviations, the arrays contain primary and commonly used suffixes and abbreviations.

street-suffix-abbreviations.json

{
  "ALY": [
    "ALLEY",
    "ALLEE",
    "ALLY"
  ],
  "ANX": [
    "ANEX",
    "ANNEX",
    "ANNX"
  ],
  "ARC": [
    "ARCADE"
  ],
  "AVE": [
    "AVENUE",
    "AV",
    "AVEN",
    "AVENU",
    "AVN",
    "AVNUE"
  ],
  "BYU": [
    "BAYOU",
    "BAYOO"
  ],
  "BCH": [
    "BEACH"
  ],
  "BND": [
    "BEND"
  ],
  "BLF": [
    "BLUFF",
    "BLUF"
  ],
  "BLFS": [
    "BLUFFS"
  ],
  "BTM": [
    "BOTTOM",
    "BOT",
    "BOTTM"
  ],
  "BLVD": [
    "BOULEVARD",
    "BOUL",
    "BOULV"
  ],
  "BR": [
    "BRANCH",
    "BRNCH"
  ],
  "BRG": [
    "BRIDGE",
    "BRDGE"
  ],
  "BRK": [
    "BROOK"
  ],
  "BRKS": [
    "BROOKS"
  ],
  "BG": [
    "BURG"
  ],
  "BGS": [
    "BURGS"
  ],
  "BYP": [
    "BYPASS",
    "BYPA",
    "BYPAS",
    "BYPS"
  ],
  "CP": [
    "CAMP",
    "CMP"
  ],
  "CYN": [
    "CANYON",
    "CANYN",
    "CNYN"
  ],
  "CPE": [
    "CAPE"
  ],
  "CSWY": [
    "CAUSEWAY",
    "CAUSWA"
  ],
  "CTR": [
    "CENTER",
    "CEN",
    "CENT",
    "CENTR",
    "CENTRE",
    "CNTER",
    "CNTR"
  ],
  "CTRS": [
    "CENTERS"
  ],
  "CIR": [
    "CIRCLE",
    "CIRC",
    "CIRCL",
    "CRCL",
    "CRCLE"
  ],
  "CIRS": [
    "CIRCLES"
  ],
  "CLF": [
    "CLIFF"
  ],
  "CLFS": [
    "CLIFFS"
  ],
  "CLB": [
    "CLUB"
  ],
  "CMN": [
    "COMMON"
  ],
  "CMNS": [
    "COMMONS"
  ],
  "COR": [
    "CORNER"
  ],
  "CORS": [
    "CORNERS"
  ],
  "CRSE": [
    "COURSE"
  ],
  "CT": [
    "COURT"
  ],
  "CTS": [
    "COURTS"
  ],
  "CV": [
    "COVE"
  ],
  "CVS": [
    "COVES"
  ],
  "CRK": [
    "CREEK"
  ],
  "CRES": [
    "CRESCENT",
    "CRSENT",
    "CRSNT"
  ],
  "CRST": [
    "CREST"
  ],
  "XING": [
    "CROSSING",
    "CRSSNG"
  ],
  "XRD": [
    "CROSSROAD"
  ],
  "XRDS": [
    "CROSSROADS"
  ],
  "CURV": [
    "CURVE"
  ],
  "DL": [
    "DALE"
  ],
  "DM": [
    "DAM"
  ],
  "DV": [
    "DIVIDE",
    "DIV",
    "DVD"
  ],
  "DR": [
    "DRIVE",
    "DRIV",
    "DRV"
  ],
  "DRS": [
    "DRIVES"
  ],
  "EST": [
    "ESTATE"
  ],
  "ESTS": [
    "ESTATES"
  ],
  "EXPY": [
    "EXPRESSWAY",
    "EXP",
    "EXPR",
    "EXPRESS",
    "EXPW"
  ],
  "EXT": [
    "EXTENSION",
    "EXTN",
    "EXTNSN"
  ],
  "EXTS": [
    "EXTENSIONS"
  ],
  "FLS": [
    "FALLS"
  ],
  "FRY": [
    "FERRY",
    "FRRY"
  ],
  "FLD": [
    "FIELD"
  ],
  "FLDS": [
    "FIELDS"
  ],
  "FLT": [
    "FLAT"
  ],
  "FLTS": [
    "FLATS"
  ],
  "FRD": [
    "FORD"
  ],
  "FRDS": [
    "FORDS"
  ],
  "FRST": [
    "FOREST",
    "FORESTS"
  ],
  "FRG": [
    "FORGE",
    "FORG"
  ],
  "FRGS": [
    "FORGES"
  ],
  "FRK": [
    "FORK"
  ],
  "FRKS": [
    "FORKS"
  ],
  "FT": [
    "FORT",
    "FRT"
  ],
  "FWY": [
    "FREEWAY",
    "FREEWY",
    "FRWAY",
    "FRWY"
  ],
  "GDN": [
    "GARDEN",
    "GARDN",
    "GRDEN",
    "GRDN"
  ],
  "GDNS": [
    "GARDENS",
    "GRDNS"
  ],
  "GTWY": [
    "GATEWAY",
    "GATEWY",
    "GATWAY",
    "GTWAY"
  ],
  "GLN": [
    "GLEN"
  ],
  "GLNS": [
    "GLENS"
  ],
  "GRN": [
    "GREEN"
  ],
  "GRNS": [
    "GREENS"
  ],
  "GRV": [
    "GROVE",
    "GROV"
  ],
  "GRVS": [
    "GROVES"
  ],
  "HBR": [
    "HARBOR",
    "HARB",
    "HARBR",
    "HRBOR"
  ],
  "HBRS": [
    "HARBORS"
  ],
  "HVN": [
    "HAVEN"
  ],
  "HTS": [
    "HEIGHTS",
    "HT"
  ],
  "HWY": [
    "HIGHWAY",
    "HIGHWY",
    "HIWAY",
    "HIWY",
    "HWAY"
  ],
  "HL": [
    "HILL"
  ],
  "HLS": [
    "HILLS"
  ],
  "HOLW": [
    "HOLLOW",
    "HLLW",
    "HOLLOWS",
    "HOLWS"
  ],
  "INLT": [
    "INLET"
  ],
  "IS": [
    "ISLAND",
    "ISLND"
  ],
  "ISS": [
    "ISLANDS",
    "ISLNDS"
  ],
  "ISLE": [
    "ISLES"
  ],
  "JCT": [
    "JUNCTION",
    "JCTION",
    "JCTN",
    "JUNCTN",
    "JUNCTON"
  ],
  "JCTS": [
    "JUNCTIONS",
    "JCTNS"
  ],
  "KY": [
    "KEY"
  ],
  "KYS": [
    "KEYS"
  ],
  "KNL": [
    "KNOLL",
    "KNOL"
  ],
  "KNLS": [
    "KNOLLS"
  ],
  "LK": [
    "LAKE"
  ],
  "LKS": [
    "LAKES"
  ],
  "LAND": [
    "LAND"
  ],
  "LNDG": [
    "LANDING",
    "LNDNG"
  ],
  "LN": [
    "LANE"
  ],
  "LGT": [
    "LIGHT"
  ],
  "LGTS": [
    "LIGHTS"
  ],
  "LF": [
    "LOAF"
  ],
  "LCK": [
    "LOCK"
  ],
  "LCKS": [
    "LOCKS"
  ],
  "LDG": [
    "LODGE",
    "LDGE",
    "LODG"
  ],
  "LOOP": [
    "LOOPS"
  ],
  "MALL": [
    "MALL"
  ],
  "MNR": [
    "MANOR"
  ],
  "MNRS": [
    "MANORS"
  ],
  "MDW": [
    "MEADOW"
  ],
  "MDWS": [
    "MEADOWS",
    "MDW",
    "MEDOWS"
  ],
  "MEWS": [
    "MEWS"
  ],
  "ML": [
    "MILL"
  ],
  "MLS": [
    "MILLS"
  ],
  "MSN": [
    "MISSION",
    "MISSN",
    "MSSN"
  ],
  "MTWY": [
    "MOTORWAY"
  ],
  "MT": [
    "MOUNT",
    "MNT"
  ],
  "MTN": [
    "MOUNTAIN",
    "MNTAIN",
    "MNTN",
    "MOUNTIN",
    "MTIN"
  ],
  "MTNS": [
    "MOUNTAINS",
    "MNTNS"
  ],
  "NCK": [
    "NECK"
  ],
  "ORCH": [
    "ORCHARD",
    "ORCHRD"
  ],
  "OVAL": [
    "OVL"
  ],
  "OPAS": [
    "OVERPASS"
  ],
  "PARK": [
    "PARKS"
  ],
  "PKWY": [
    "PARKWAY",
    "PARKWY",
    "PKWAY",
    "PKY",
    "PARKWAYS",
    "PKWYS"
  ],
  "PASS": [
    "PASS"
  ],
  "PSGE": [
    "PASSAGE"
  ],
  "PATH": [
    "PATHS"
  ],
  "PIKE": [
    "PIKES"
  ],
  "PNE": [
    "PINE"
  ],
  "PNES": [
    "PINES"
  ],
  "PL": [
    "PLACE"
  ],
  "PLN": [
    "PLAIN"
  ],
  "PLNS": [
    "PLAINS"
  ],
  "PLZ": [
    "PLAZA",
    "PLZA"
  ],
  "PT": [
    "POINT"
  ],
  "PTS": [
    "POINTS"
  ],
  "PRT": [
    "PORT"
  ],
  "PRTS": [
    "PORTS"
  ],
  "PR": [
    "PRAIRIE",
    "PRR"
  ],
  "RADL": [
    "RADIAL",
    "RAD",
    "RADIEL"
  ],
  "RAMP": [
    "RAMP"
  ],
  "RNCH": [
    "RANCH",
    "RANCHES",
    "RNCHS"
  ],
  "RPD": [
    "RAPID"
  ],
  "RPDS": [
    "RAPIDS"
  ],
  "RST": [
    "REST"
  ],
  "RDG": [
    "RIDGE",
    "RDGE"
  ],
  "RDGS": [
    "RIDGES"
  ],
  "RIV": [
    "RIVER",
    "RVR",
    "RIVR"
  ],
  "RD": [
    "ROAD"
  ],
  "RDS": [
    "ROADS"
  ],
  "RTE": [
    "ROUTE"
  ],
  "ROW": [
    "ROW"
  ],
  "RUE": [
    "RUE"
  ],
  "RUN": [
    "RUN"
  ],
  "SHL": [
    "SHOAL"
  ],
  "SHLS": [
    "SHOALS"
  ],
  "SHR": [
    "SHORE",
    "SHOAR"
  ],
  "SHRS": [
    "SHORES",
    "SHOARS"
  ],
  "SKWY": [
    "SKYWAY"
  ],
  "SPG": [
    "SPRING",
    "SPNG",
    "SPRNG"
  ],
  "SPGS": [
    "SPRINGS",
    "SPNGS",
    "SPRNGS"
  ],
  "SPUR": [
    "SPURS"
  ],
  "SQ": [
    "SQUARE",
    "SQR",
    "SQRE",
    "SQU"
  ],
  "SQS": [
    "SQUARES",
    "SQRS"
  ],
  "STA": [
    "STATION",
    "STATN",
    "STN"
  ],
  "STRA": [
    "STRAVENUE",
    "STRAV",
    "STRAVEN",
    "STRAVN",
    "STRVN",
    "STRVNUE"
  ],
  "STRM": [
    "STREAM",
    "STREME"
  ],
  "ST": [
    "STREET",
    "STRT",
    "STR"
  ],
  "STS": [
    "STREETS"
  ],
  "SMT": [
    "SUMMIT",
    "SUMIT",
    "SUMITT"
  ],
  "TER": [
    "TERRACE",
    "TERR"
  ],
  "TRWY": [
    "THROUGHWAY"
  ],
  "TRCE": [
    "TRACE",
    "TRACES"
  ],
  "TRAK": [
    "TRACK",
    "TRACKS",
    "TRK",
    "TRKS"
  ],
  "TRFY": [
    "TRAFFICWAY"
  ],
  "TRL": [
    "TRAIL",
    "TRAILS",
    "TRLS"
  ],
  "TRLR": [
    "TRAILER",
    "TRLRS"
  ],
  "TUNL": [
    "TUNNEL",
    "TUNEL",
    "TUNLS",
    "TUNNELS",
    "TUNNL"
  ],
  "TPKE": [
    "TURNPIKE",
    "TRNPK",
    "TURNPK"
  ],
  "UPAS": [
    "UNDERPASS"
  ],
  "UN": [
    "UNION"
  ],
  "UNS": [
    "UNIONS"
  ],
  "VLY": [
    "VALLEY",
    "VALLY",
    "VLLY"
  ],
  "VLYS": [
    "VALLEYS"
  ],
  "VIA": [
    "VIADUCT",
    "VDCT",
    "VIADCT"
  ],
  "VW": [
    "VIEW"
  ],
  "VWS": [
    "VIEWS"
  ],
  "VLG": [
    "VILLAGE",
    "VILL",
    "VILLAG",
    "VILLG",
    "VILLIAGE"
  ],
  "VLGS": [
    "VILLAGES"
  ],
  "VL": [
    "VILLE"
  ],
  "VIS": [
    "VISTA",
    "VIST",
    "VST",
    "VSTA"
  ],
  "WALK": [
    "WALKS"
  ],
  "WALL": [
    "WALL"
  ],
  "WAY": [
    "WY"
  ],
  "WAYS": [
    "WAYS"
  ],
  "WL": [
    "WELL"
  ],
  "WLS": [
    "WELLS"
  ]
}

Thank you. I used this to create what I needed: a de-duplicated array of strings that includes both the abbreviations and primary names. Here's for anyone else:

[
    "ALLEY",
    "ALLEE",
    "ALY",
    "ALLY",
    "ANEX",
    "ANX",
    "ANNEX",
    "ANNX",
    "ARCADE",
    "ARC",
    "AVENUE",
    "AV",
    "AVE",
    "AVEN",
    "AVENU",
    "AVN",
    "AVNUE",
    "BAYOU",
    "BAYOO",
    "BYU",
    "BEACH",
    "BCH",
    "BEND",
    "BND",
    "BLUFF",
    "BLF",
    "BLUF",
    "BLUFFS",
    "BLFS",
    "BOTTOM",
    "BOT",
    "BTM",
    "BOTTM",
    "BOULEVARD",
    "BLVD",
    "BOUL",
    "BOULV",
    "BRANCH",
    "BR",
    "BRNCH",
    "BRIDGE",
    "BRDGE",
    "BRG",
    "BROOK",
    "BRK",
    "BROOKS",
    "BRKS",
    "BURG",
    "BG",
    "BURGS",
    "BGS",
    "BYPASS",
    "BYP",
    "BYPA",
    "BYPAS",
    "BYPS",
    "CAMP",
    "CP",
    "CMP",
    "CANYON",
    "CANYN",
    "CYN",
    "CNYN",
    "CAPE",
    "CPE",
    "CAUSEWAY",
    "CSWY",
    "CAUSWA",
    "CENTER",
    "CEN",
    "CTR",
    "CENT",
    "CENTR",
    "CENTRE",
    "CNTER",
    "CNTR",
    "CENTERS",
    "CTRS",
    "CIRCLE",
    "CIR",
    "CIRC",
    "CIRCL",
    "CRCL",
    "CRCLE",
    "CIRCLES",
    "CIRS",
    "CLIFF",
    "CLF",
    "CLIFFS",
    "CLFS",
    "CLUB",
    "CLB",
    "COMMON",
    "CMN",
    "COMMONS",
    "CMNS",
    "CORNER",
    "COR",
    "CORNERS",
    "CORS",
    "COURSE",
    "CRSE",
    "COURT",
    "CT",
    "COURTS",
    "CTS",
    "COVE",
    "CV",
    "COVES",
    "CVS",
    "CREEK",
    "CRK",
    "CRESCENT",
    "CRES",
    "CRSENT",
    "CRSNT",
    "CREST",
    "CRST",
    "CROSSING",
    "XING",
    "CRSSNG",
    "CROSSROAD",
    "XRD",
    "CROSSROADS",
    "XRDS",
    "CURVE",
    "CURV",
    "DALE",
    "DL",
    "DAM",
    "DM",
    "DIVIDE",
    "DIV",
    "DV",
    "DVD",
    "DRIVE",
    "DR",
    "DRIV",
    "DRV",
    "DRIVES",
    "DRS",
    "ESTATE",
    "EST",
    "ESTATES",
    "ESTS",
    "EXPRESSWAY",
    "EXP",
    "EXPY",
    "EXPR",
    "EXPRESS",
    "EXPW",
    "EXTENSION",
    "EXT",
    "EXTN",
    "EXTNSN",
    "EXTENSIONS",
    "EXTS",
    "FALL",
    "FALLS",
    "FLS",
    "FERRY",
    "FRY",
    "FRRY",
    "FIELD",
    "FLD",
    "FIELDS",
    "FLDS",
    "FLAT",
    "FLT",
    "FLATS",
    "FLTS",
    "FORD",
    "FRD",
    "FORDS",
    "FRDS",
    "FOREST",
    "FRST",
    "FORESTS",
    "FORGE",
    "FORG",
    "FRG",
    "FORGES",
    "FRGS",
    "FORK",
    "FRK",
    "FORKS",
    "FRKS",
    "FORT",
    "FT",
    "FRT",
    "FREEWAY",
    "FWY",
    "FREEWY",
    "FRWAY",
    "FRWY",
    "GARDEN",
    "GDN",
    "GARDN",
    "GRDEN",
    "GRDN",
    "GARDENS",
    "GDNS",
    "GRDNS",
    "GATEWAY",
    "GTWY",
    "GATEWY",
    "GATWAY",
    "GTWAY",
    "GLEN",
    "GLN",
    "GLENS",
    "GLNS",
    "GREEN",
    "GRN",
    "GREENS",
    "GRNS",
    "GROVE",
    "GROV",
    "GRV",
    "GROVES",
    "GRVS",
    "HARBOR",
    "HARB",
    "HBR",
    "HARBR",
    "HRBOR",
    "HARBORS",
    "HBRS",
    "HAVEN",
    "HVN",
    "HEIGHTS",
    "HT",
    "HTS",
    "HIGHWAY",
    "HWY",
    "HIGHWY",
    "HIWAY",
    "HIWY",
    "HWAY",
    "HILL",
    "HL",
    "HILLS",
    "HLS",
    "HOLLOW",
    "HLLW",
    "HOLW",
    "HOLLOWS",
    "HOLWS",
    "INLET",
    "INLT",
    "ISLAND",
    "IS",
    "ISLND",
    "ISLANDS",
    "ISS",
    "ISLNDS",
    "ISLE",
    "ISLES",
    "JUNCTION",
    "JCT",
    "JCTION",
    "JCTN",
    "JUNCTN",
    "JUNCTON",
    "JUNCTIONS",
    "JCTNS",
    "JCTS",
    "KEY",
    "KY",
    "KEYS",
    "KYS",
    "KNOLL",
    "KNL",
    "KNOL",
    "KNOLLS",
    "KNLS",
    "LAKE",
    "LK",
    "LAKES",
    "LKS",
    "LAND",
    "LANDING",
    "LNDG",
    "LNDNG",
    "LANE",
    "LN",
    "LIGHT",
    "LGT",
    "LIGHTS",
    "LGTS",
    "LOAF",
    "LF",
    "LOCK",
    "LCK",
    "LOCKS",
    "LCKS",
    "LODGE",
    "LDG",
    "LDGE",
    "LODG",
    "LOOP",
    "LOOPS",
    "MALL",
    "MANOR",
    "MNR",
    "MANORS",
    "MNRS",
    "MEADOW",
    "MDW",
    "MEADOWS",
    "MDWS",
    "MEDOWS",
    "MEWS",
    "MILL",
    "ML",
    "MILLS",
    "MLS",
    "MISSION",
    "MISSN",
    "MSN",
    "MSSN",
    "MOTORWAY",
    "MTWY",
    "MOUNT",
    "MNT",
    "MT",
    "MOUNTAIN",
    "MNTAIN",
    "MTN",
    "MNTN",
    "MOUNTIN",
    "MTIN",
    "MOUNTAINS",
    "MNTNS",
    "MTNS",
    "NECK",
    "NCK",
    "ORCHARD",
    "ORCH",
    "ORCHRD",
    "OVAL",
    "OVL",
    "OVERPASS",
    "OPAS",
    "PARK",
    "PRK",
    "PARKS",
    "PARKWAY",
    "PKWY",
    "PARKWY",
    "PKWAY",
    "PKY",
    "PARKWAYS",
    "PKWYS",
    "PASS",
    "PASSAGE",
    "PSGE",
    "PATH",
    "PATHS",
    "PIKE",
    "PIKES",
    "PINE",
    "PNE",
    "PINES",
    "PNES",
    "PLACE",
    "PL",
    "PLAIN",
    "PLN",
    "PLAINS",
    "PLNS",
    "PLAZA",
    "PLZ",
    "PLZA",
    "POINT",
    "PT",
    "POINTS",
    "PTS",
    "PORT",
    "PRT",
    "PORTS",
    "PRTS",
    "PRAIRIE",
    "PR",
    "PRR",
    "RADIAL",
    "RAD",
    "RADL",
    "RADIEL",
    "RAMP",
    "RANCH",
    "RNCH",
    "RANCHES",
    "RNCHS",
    "RAPID",
    "RPD",
    "RAPIDS",
    "RPDS",
    "REST",
    "RST",
    "RIDGE",
    "RDG",
    "RDGE",
    "RIDGES",
    "RDGS",
    "RIVER",
    "RIV",
    "RVR",
    "RIVR",
    "ROAD",
    "RD",
    "ROADS",
    "RDS",
    "ROUTE",
    "RTE",
    "ROW",
    "RUE",
    "RUN",
    "SHOAL",
    "SHL",
    "SHOALS",
    "SHLS",
    "SHORE",
    "SHOAR",
    "SHR",
    "SHORES",
    "SHOARS",
    "SHRS",
    "SKYWAY",
    "SKWY",
    "SPRING",
    "SPG",
    "SPNG",
    "SPRNG",
    "SPRINGS",
    "SPGS",
    "SPNGS",
    "SPRNGS",
    "SPUR",
    "SPURS",
    "SQUARE",
    "SQ",
    "SQR",
    "SQRE",
    "SQU",
    "SQUARES",
    "SQRS",
    "SQS",
    "STATION",
    "STA",
    "STATN",
    "STN",
    "STRAVENUE",
    "STRA",
    "STRAV",
    "STRAVEN",
    "STRAVN",
    "STRVN",
    "STRVNUE",
    "STREAM",
    "STRM",
    "STREME",
    "STREET",
    "ST",
    "STRT",
    "STR",
    "STREETS",
    "STS",
    "SUMMIT",
    "SMT",
    "SUMIT",
    "SUMITT",
    "TERRACE",
    "TER",
    "TERR",
    "THROUGHWAY",
    "TRWY",
    "TRACE",
    "TRCE",
    "TRACES",
    "TRACK",
    "TRAK",
    "TRACKS",
    "TRK",
    "TRKS",
    "TRAFFICWAY",
    "TRFY",
    "TRAIL",
    "TRL",
    "TRAILS",
    "TRLS",
    "TRAILER",
    "TRLR",
    "TRLRS",
    "TUNNEL",
    "TUNEL",
    "TUNL",
    "TUNLS",
    "TUNNELS",
    "TUNNL",
    "TURNPIKE",
    "TRNPK",
    "TPKE",
    "TURNPK",
    "UNDERPASS",
    "UPAS",
    "UNION",
    "UN",
    "UNIONS",
    "UNS",
    "VALLEY",
    "VLY",
    "VALLY",
    "VLLY",
    "VALLEYS",
    "VLYS",
    "VIADUCT",
    "VDCT",
    "VIA",
    "VIADCT",
    "VIEW",
    "VW",
    "VIEWS",
    "VWS",
    "VILLAGE",
    "VILL",
    "VLG",
    "VILLAG",
    "VILLG",
    "VILLIAGE",
    "VILLAGES",
    "VLGS",
    "VILLE",
    "VL",
    "VISTA",
    "VIS",
    "VIST",
    "VST",
    "VSTA",
    "WALK",
    "WALKS",
    "WALL",
    "WAY",
    "WY",
    "WAYS",
    "WELL",
    "WL",
    "WELLS",
    "WLS",
];