cogitate on (something)
To contemplate something. This is a big decision, so I need some more time to cogitate on it, all right?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
cogitate on something
Rur. to think about something. Cogitate on this idea for a while. I will have to cogitate on this for a few days. I'll get back to you.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.