What does “ idam” mean & how to say it ? 

The actual pronunciation of "Idam" is:

"ee-DUM"

As for the meaning, "Idam" is a Tamil and sanskrit word that roughly translates to:

"Home" or "Abode" or "Space" or "Territory"

In a broader sense, "Idam" can also refer to a sense of belonging, a place of comfort, or a community that feels like home! 

Sometimes things can evoke feelings similar to being in a special place or "IDAM" like a comfortable blanket or even a cozy special garment !