en_tn/2ki/18/16.md

the king of Assyria mobilized his great army, sending Tartan and Rabsaris and the chief commander

Sennacherib sent a group of men from his army to Jerusalem to meet with King Hezekiah, including officials named Tartan and Rabsaris.

Tartan ... Rabsaris

Some Bibles translate these as proper names. Other versions of the Bible translate them as titles. AT: "the Tartan ... the Rabsaris" or "the leader of the soldier ... a court official" (See: rc://en/ta/man/translate/translate-names)

Lachish

This is the name of a city. (See: rc://en/ta/man/translate/translate-names)

the conduit of the upper pool

the channel where the water stored in the "upper pool" flows into the city of Jerusalem

stood by it

"and waited there for King Hezekiah to meet with them"

Eliakim ... Hilkiah ... Shebna ... Joah ... Asaph

These are the names of men. (See: rc://en/ta/man/translate/translate-names)