quindecennial

listen to the pronunciation of quindecennial
الإنجليزية - التركية
on beşinci yıldönüm
on beş yıla veya on beşinci yıldönümüne ait
الإنجليزية - الإنجليزية
Lasting fifteen years
Happening once in fifteen years
{i} fifteenth anniversary
{s} of a fifteenth anniversary; of a period of fifteen years
quindecennial
المفضلات