keep (something) straight (in one's mind/head)(redirected from keeps straight)
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keep (something) straight (in one's mind/head)
To be able to understand something clearly and comprehensively; to keep the details of something clear in one's mind. This project is getting so out of control. I can barely keep it straight in my mind anymore! I'm no good at lying because I can never keep my story straight!
keep things straight (in one's mind)
Fig. to correctly distinguish one thing from other things. These two bottles look so much alike. It's hard to keep them straight.