A marking that certifies that a product is kosher.(noun)
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Use "hechsher" in a sentence
"I said that hechsher is Yiddish for Kosher, Arieh says it's not, it's Hebrew."
"Much food — flour, rice, and other staples, and all produce — is kosher by definition, and need not bear a "hechsher," or kosher symbol, although a lot of it does."
"No ‘bipartisan hechsher’ for Chabad in D.C. JTA, Sept 9, 2008"