abbreviation
1. tank corps
2. tariff circular; tariff commission
3. teachers college
4. technical college
5. temporary constable
6. tennis club
7. terra-cotta
8. thermocouple
9. till countermanded
10. top of column
11. total chances
12. touring club
13. town clerk; town councillor
14. traffic commissioner; traffic consultant
15. training center; training circular
16. transportation corps
17. turret captain