Need help again

[IslamIsCancer]

I know what yimach shmo vezichro means.
But sometimes Chaim says yimach shma? I think it's when he refers to many people.
Can you please write the entire sentence in plural.

My second question refers to Zecher tzadik livracha Hashem yikom damo, sometimes
Chaim says one word between tzadik and livracha and is sounds like kedosh?
So the entire sentence is Zecher tzadik 'kedosh' livracha Hashem yikom damo?
What does that mean?

Thanks for your help.

[IslamIsCancer]

Thank you very much, you're a great helper