Related Clues:

• Be acquainted with
• See 50-Down
• In the ___
• Commit to memory
• Cognize
• More than suspect
• Have no doubt
• Be positive about
• Start for it all or nothing
• In the ___ (informed)
• Have down cold
• 'Well, what do you ___?!'
• Be intimate with
• Remove all doubt
• Have down pat