GTC

1. General Teaching Council (GTCE for England; GTC(NI) for Northern Ireland; GTCS for Scotland; GTCW for Wales)
2. Good till cancelled (on an order for goods, securities, etc)
3. Government Training Centre

• hackney carriages
• hackney coach
• hackney coaches
• hackney-coachman
• hackney-coachmen
• hackneyed
• hackneying
• hackneyman
• hackneymen
• hackneys
• hacks
• hacksaw
• hacksawed
• hacksawing
• hacksawn
• hacksaws
• hack someone off
• hacktivism
• hacktivist
• hackwork
• hackworks
• Hacky Sack
• hac lege
• hacqueton
• had