Vocabulary

ਜਾਨੂੰ
jaanu

my life, my love (vocative endearment from jaan = life/soul)

noun/vocative
In this song
Kala Tikka · Mankirt Aulakh
Verse 3: Sardar Khehra
Tiffany ਦੀ ਰਿੰਗ ਲੈ ਦੂੰ ਜਾਨੂੰ
Tiffany di ring lai dun jaanu
I'll get you a Tiffany ring, love