People whose job is to test or check something carefully to see if it works correctly or if someone knows a subject well.
From Latin 'examinare' meaning 'to weigh or test,' derived from 'examen' (a weighing scale). The suffix '-er' makes it refer to a person who does the examining, and '-s' makes it plural.
The same root 'examen' gave us the word 'examination'—and interestingly, the Romans used actual scales to weigh things when testing quality, so examining originally meant 'weighing fairly'!
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