Related Clues:

• Comfortable and cozy
• Affectionate family name
• Cheer opener
• ''--- boom bah!''
• Palindromic sib
• Girl in the family
• Familiar sibling title
• Marie, to Donny
• Certain sib
• Family girl, for short
• Familial address
• Member of the fam
• Familial nickname
• Family member, informally
• Venus, to Serena