rough idea(redirected from a rough idea)
An approximate estimate or general conception (about something). There will of course be a lot more details when we get started for real, but these sketches should give you a rough idea of the design. I completed a similar program a few years ago, so I have a rough idea about what to expect.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
*rough idea (about something)and *rough idea (of something)
a general idea; an estimate. (*Typically: get ~; have ~; give someone ~.) I need to get a rough idea of how many people will be there. I'll manage to get a rough idea. That's good enough.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.