Property tax and Abatement

I bought the condo in Jersey City, NJ and received the mortgage interest statement from the lender. 

Line 10 Other " real property taxes paid $500.

In the comments section indicates Escrow Reconciliation

$... - beginning balance

$... - deposits

$... - hazard ins [aid

$500 - tax bills paid

$10,000 - Land Improvement

$... - ending balance

 

I received the letter from Jersey City, 2021 abatement service charge liability

2021 second half service charge liability (payment in lieu of taxes) : $5,000

 

My question is property tax in TT is sum of 500 and $10,000 ?   What is Abatement ?