Which word(s) could be eliminated for a stronger effect Please give my regards to each and every one of former students?

The phrase that can be eliminated for a stronger effect is "each and every one".

Here's why:

* Redundancy: "Each" and "every" essentially mean the same thing, so using both is redundant.

* Wordiness: The phrase adds unnecessary length and weakens the impact.

* Clarity: "Please give my regards to all former students" is more concise and direct.

The revised sentence: "Please give my regards to all former students."