1. Sell in advance (esp. a book, film rights, etc) 
2. (marketing) promote something before it is generally available to create demand in advance

Derived forms: presold, preselling, presells

• rapturously
• raptus
• raptus hemorrhagicus
• rara avis
• rare
• rare bird
• rare earth
• rare-earth element
• rare-roasted
• rarebit
• raree-show
• rarefaction
• rarefied
• rarefy
• rarely
• rareness
• rarified
• rarify
• raring
• rariora
• rarity
• RAS
• Ras Tafari Makonnen
• rascal
• rascality