think out

Related to think out: think up, think out loud, thought out, Think out of the box

think out

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?
See also: out, think
Farlex Dictionary of Idioms.

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.
See also: out, think
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

think out

v.
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.
See also: out, think
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • think over
  • go against the flow
  • What are you on?
  • never in a month of Sundays
  • think out of the box
  • What color is the sun in your world?
  • never in a million years
  • think back
  • think to (do something)
  • think to do