-RD


Meaning of -RD in English

~ is added to numbers that end in 3, except those ending in 13, in order to form ordinal numbers such as 3rd or 33rd. 3rd is pronounced ‘third’.

...September 3rd 1990.

...the 33rd Boston Marathon.

...Canada’s 123rd birthday.

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .