ordinal indicator

A sign adjacent to a numeral denoting that it is an ordinal number, rather than a cardinal number.

Japanese Meaning

序数を示す記号、例えば序数（1st, 2nd, 3rd 等）を表記するときに用いられる記号

Please include the ordinal indicator when formatting the date to avoid confusion.

日付をフォーマットする際に混乱を避けるため、序数を示す記号を含めてください。

Sense（1）

A sign adjacent to a numeral denoting that it is an ordinal number, rather than a cardinal number.

ordinal indicators

（ plural ）