15.

U+2496, ⒖
NUMBER FIFTEEN FULL STOP

[U+2495]
Enclosed Alphanumerics
[U+2497]

Icelandic

Icelandic numbers (edit)
 ←  14 15 16  → 
    Cardinal: fimmtán
    Ordinal: fimmtándi
    Ordinal abbreviation: 15.
    Fractional: fimmtándi

Adjective

15. (indeclinable)

  1. 15th