graben /gräˈbən/ (geology)

A rift valley (qv under rift¹)

• refuels
• refuge
• refuged
• refugee
• refugees
• refuges
• refugia
• refuging
• refugium
• refulgence
• refulgences
• refulgencies
• refulgency
• refulgent
• refulgently
• re-fund
• refund
• refundable
• re-funded
• refunded
• refunder
• refunders
• re-funding
• refunding
• refundment