do (one's) homework

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do (one's) homework

1. Literally, to complete the school work that has been assigned by a teacher to be done at home. You can't watch any more television until you do your homework!
2. To be thoroughly prepared and informed about something or something, especially in advance of some process, action, or decision. Be sure you do your homework before heading into that meeting; there's a lot at stake, and no one's going to like it if you aren't up to speed. I always do my homework before I make big purchases.
See also: homework
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

do your homework

If you do your homework, you prepare for something, especially by finding out information about it. Before you buy any shares, do your homework. Doing your homework before you make your request will help you to have a confident manner.
See also: homework
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

do your homework

examine thoroughly the details and background of a subject or topic, especially before giving your own views on it.
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Farlex Partner Idioms Dictionary © Farlex 2017

do your ˈhomework (on something)

find out the facts, details, etc. of a subject in preparation for a meeting, a speech, an article, etc: He had just not done his homework for the interview. He couldn’t answer our questions.
See also: homework
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
I have done my homework as such, and now we'll get cracking.
Hinch said: "I'm renowned for being a bit of a geek when it comes to studying players and I'd done my homework on them.
A few years ago I was faced with the decision of harvesting a 165-class buck in Manitoba during the first 15 minutes of a seven-day hunt, but I wasn't afraid to pull the trigger because I had done my homework and knew the trophy quality I could expect in the area.
"I should have done my homework," she laments, "but I didn't think they would be so dishonest."