epigraph (n.)

• banner
• caption
• catchword
• device
• dropline
• epithet
• hanger
• head
• heading
• headline
• inscription
• legend
• lettering
• motto
• rubric
• screamer
• slogan
• spread
• spreadhead
• streamer
• subhead
• subheading
• subtitle
• superscription
• title
• transcription
• transliteration
• watchword