Related Clues:

• Like music
• Had down pat
• Was certain of
• Picked up, in a way
• Apprehended
• Listened
• Had met before
• Took testimony from
• Was acquainted with
• Appreciated
• Was privy to
• "... Yorick! I __ him, Horatio": Hamlet
• Was certain
• ''I ___ it!''
• "Copy that"