"Friends" in Bengali is বন্ধু (bandhu).
Happy in Bengali is pronounced as "খুশি" (khushi).
Subho Bibaho Barshiki
I'll use it as a sentence. "THATHAREE!" Dora cried to Lola in Bengali. Happy?
sukhi bibahito jibon
Subho Bibaho Barshiki !!!!
You say "Happy new year!", or just in shorter versions, "You too"
"Subho dipabali" means "Happy Diwali" in Bengali.
Bhalobasa jug jug jio sudra
সুখী নতুন বছর sukhī natuna bachara
The word for elegant in Bengali is "মর্যাদাপূর্ণ" (môryādāpūrṇa).
In Bengali, "Mrs" is said as "মেমস" (mems).