Agent noun of apprehend; one who apprehends.(noun)
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Use "apprehender" in a sentence
"In other words, "actual restraint of the person" is perfectly legal if the apprehender reasonably believes a crime has been committed."
"We hear it in the words of the old-lady Indian seer Florita Almada, possessor of common-sense recipes for high blood pressure, and apprehender of danger."
"KING: If there is an apprehender and if Jessica is alive, should he tell the apprehender things about her?"