didi

noun
1
an older sister
خواهر بزرگتر, خواهر بزرگ‌تر
2
used after the name of an older female cousin of the same generation
دی‌دی
3
used when speaking to an older female who is not related to you, as a title showing respect
دی‌دی
Didi, could you help me with this bag?