1. A form of daylight-saving time, one hour ahead of UTC, used in the United Kingdom, Ireland and mainland Portugal in summer
   - British Summer Time, Irish Standard Time, Western European Summer Time

Encyclopedia: BST

• trolley coach
• trolley line
• trolleybus
• trolleyed
• trolling
• Trollius
• trollop
• Trollope
• Trombicula
• trombiculiasis
• trombiculid
• Trombiculidae
• trombidiid
• Trombidiidae
• trombone
• trombone player
• trombonist
• trommel
• tromp
• trompe-l'oeil
• trompillo
• trona
• Trondheim
• Trondheim Fiord
• Trondheim Fjord