CIR, CIRCLE. CLFS, CLIFF. CLFS, CLIFFS. CLB, CLUB. COR, CORNER. CORS, CORNERS. CRSE, COURSE. CT, COURT. CTS, COURTS. CV, COVE. CRK, CREEK. CRES, CRESCENT. XING, CROSSING. DL, DALE. DM, DAM. DEPT, DEPARTMENT. DV, DIVIDE. DR, DRIVE. EST, ESTATE. EXPY, EXPRESSWAY. read more
The most acceptable POST OFFICE abbreviation is "Ste" (only first letter capitalized, no preceding comma, no punctuation). And in formal letters, you would spell out "suite" in your text-body. read more