Possible Clues:

• Understand what is meant
• Understand implicitly, or what an answering machine can do
• Visit the supporters' shop for the mother, presumably under stand?
• Understand subjects inside ate eggs, boiled
• Understand and become wise about topics
• Pick up main points by one of the Wise Men under stand?
• Understand
• If you receive this, you'll understand
• Understand what someone using 'play' on answer phone will do
• Understand (colloq.)