| ACRONYM | FULL WORDING | COMMENT |
| TARV | TransAtlantic Round Voyage | Specifies the trade under a T/C |
| TBN | To Be Narrowed | Used about the date of loading or delivery of the vessel |
| TBN | To Be Nominated, To be Named | Used about the vessel, or the port, ... |
| TBR | To Be Renamed | Used about vessel chartered or sold before changing her name |
| TC, T/C | Timecharter | |
| TCT | Timecharter Trip | |
| TDW | Ton(s) Deadweight | |
| TEU | Twenty Foot Equivalent Unit | ISO standards for containers of 20’x8’x8’6" |
| TIP | Taking Inward Pilot | Used to specify the place and the time of the delivery of a vessel under T/C |
| TOVALOP | Tanker Owner’s Voluntary Agreement of Liability for Oil Pollution | |
| TPC | Ton(s) per Centimetre | Weight necessary to increase vessel’s draft by 1cm |
| TPI | Ton(s) per Inch | Same as above for 1 inch (2,5399 cm) |
| TS, T/S | Timesheet | Its conclusion must be an account of time lost (demurrage) or time saved (despatch-money) |
| TTL, TOTCOM | Total (commissions) | |
