-rd

symbol

— used after the figure 3 to indicate the ordinal number third or any ordinal number ending with third

June 3rd

43rd St.

— compare -d, -nd

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-rd,

a suffix added to the numeral 3 or any numeral ending with 3 (except 13) to indicate the ordinal number: »

3rd Avenue, 93rd Street, the 23rd of April.

rd.,

1. rix-dollar.

2. road.

3. rod or rods.

4. round.

Rd (no period),

formerly, radium (chemical element). Now, Ra (no period).

Rd.,

1. rix-dollar.

2. Road.

R/D (no periods),

Banking. refer to drawer.

R.D.,

Rural Delivery.

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— used in writing after the number 3 for the word third

my 3rd [=third] try

I placed 43rd in the class.