I. abbreviation
-ed I — used especially in standard abbreviations of the past and past participle forms of certain verbs (as rec d for received, chg d for charged, lt d for limited )
II. symbol
— used after the figure 2 or the figure 3 to indicate the ordinal number second or third or any ordinal number ending with second or third
May 2 d
33 d St.
— compare -nd , -rd