checker

باللغة العربية: مُدَقِّق، مُحَاسِب، فَاحِص

1. One who or that which checks or verifies something.
2. One who makes a check mark.
3. The clerk who tallies cost of purchases and accepts payment. · There was a long line at the grocery store because the checker was so slow.
4. One who hinders or stops something.

الجمع checkers