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To think of, consider, and prepare for all the details and aspects of some plan or idea. A noun or pronoun can be used between "think" and "out." Tom's thought out every angle—the plan is foolproof. I don't think you've thought this out completely. Maybe we should hold off on going through with it?
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
think something out
to think through something; to prepare a plan or scheme. This is an interesting problem. I'll have to take some time and think it out. We spent all morning thinking out our plan.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
To develop some idea or plan fully: We thought out a new strategy after we lost the game. The author thought the plot out before starting to write the book.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.