Definition of "tref" []

• Judaism Unclean and unfit for consumption according to dietary law; not kosher. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Sam kept a kosher house, and nonkosher cake is tref from the Yiddish word for unclean, so Reed couldnt bring it in, couldnt even let it touch the silverware."
• "Within the walls he might move at will, perhaps his freedom extended even to the tref that lay outside the gate."
• "And within the hour they were riding alongside the high stockade of Owain's royal seat and tref of Aber, and the porters and guards at the gates had seen the shimmer of their colours nearing, and cried their coming within."