go through channels
Use the correct procedure, especially in a hierarchy or bureaucracy. For example, You'll have to go through channels for approval of this expenditure. This term uses channel in the sense of “a conduit.” [Mid-1900s]
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Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.