Related Clues:

• __ agreement
• ___-B (toothbrush brand)
• Adult subcategory
• One-on-one exam
• Administered by swallowing
• Postgraduate's hurdle
• Lacking a paper trail
• Dental (exam)
• Like some medication
• Of the voice
• Spoken, not written
• To do with mouth
• Related to the mouth
• By word of mouth, say exam
• Relating to speech