1. Having two heads

See also: headed

• double agent
• double back
• double bar
• double bass
• double bassoon
• double bed
• double bind
• double birdie
• double blind
• double bluff
• double boiler
• double bond
• double chin
• double clinch
• double cream
• double crochet
• double cross
• double crème
• double dagger
• double damages
• double date
• double decomposition
• double decomposition reaction
• double digit
• double dipper