-rd
From Longman Dictionary of Contemporary EnglishRelated topics: Numbers-rd-rd /d $ rd/ suffix HMNused with ordinal numbers ending in 3, except 13 the 3rd (=third) of June his 53rd birthdayRelated topics: RoadsRd.Rd. (also Rd British English)TTRthe written abbreviation of Road, used in addressesR.D.R.D. /ˌɑː ˈdiː $ ˌɑːr-/ noun [uncountable] American English (rural delivery) the postal system for country areasFrom Longman Business DictionaryRd.Rd. (also Rd) written abbreviation for Road, used in addresses150 London Rd, Liverpool