1. Street names for heroin
   - big H, hell dust, smack, thunder, skag, scag

Type of: diacetylmorphine, heroin

• fourpenny
• fourpenny nail
• fourscore
• foursome
• foursquare
• fourteen
• fourteenth
• Fourteenth Amendment
• fourth
• Fourth Council of Constantinople
• fourth cranial nerve
• Fourth Crusade
• fourth deck
• fourth dimension
• Fourth Earl of Chesterfield
• Fourth Earl of Orford
• fourth estate
• Fourth Lateran Council
• Fourth of July
• fourth part
• fourth power
• fourth stomach
• fourth ventricle
• fourth-year
• fourthly