Crossword Genius

"Jeopardy!" host Jennings (3)

Ross

I believe the answer is:

ken

(Other definitions for ken that I've seen before include "Notice" , "Understanding - boy's name" , "Awareness" , "Identify; -- Livingstone" , "One's range of knowledge" .)

I've seen this clue in The New York Times, the LA Times and the Universal.
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