| TEC | Terminologia Esperanto-Centro | In Esperanto | → Artificial languages (linguistics) |
| TEC | Training Enterprise Council | In English | → Education |
| TEC | Test Equipment Center | In English | |
| TEC | Trans-Earth Coast | In English | |
| TEC | Tielse Eendracht Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
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