barbican /bärˈbi-kən/

1. A projecting watchtower over the gate of a castle or fortified town
2. Esp the outwork intended to defend the drawbridge

• thoracoscope
• thoracoscopes
• thoracostomies
• thoracostomy
• thoracotomies
• thoracotomy
• Thorah
• thorax
• thoraxes
• thoria
• thorias
• thorite
• thorites
• thorium
• thoriums
• thorn
• thorn apple
• thorn apples
• thornback
• thornbacks
• thornbill
• thornbills
• thornbird
• thornbirds
• thornbush