| TEF | Relisys TEFAX Fax document 
| Others |
| TEF | Tablet, Effervescent
| Others |
| TEF | Tailhook Educational Foundation
| Others |
| TEF | Teaching Excellence Framework
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| TEF | Technical Executive Forum
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| TEF | Telemark Educational Foundation
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| TEF | Telfer, Western Australia, Australia
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| TEF | Temporary Enemy Flag
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| TEF | Temporary Enemy Flagging
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| TEF | Test for Evaluating French
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| TEF | Tewksbury Education Foundation
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| TEF | Texas Enterprise Fund
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| TEF | The Elite Force
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| TEF | The Elite Fraggers
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| TEF | The Ender Foxz
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| TEF | The Enron Fantasy
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| TEF | the Ethical Fund
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| TEF | Theological Education Fund
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| TEF | Thermic Effect of Food
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| TEF | Thomas Edward Figg
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| TEF | Thyrotroph Embryonic Factor
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| TEF | Time Energy and Frequency
| Others |
| TEF | Time Energy Frequency
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| TEF | Time, Energy, and Frequency
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| TEF | Toilet Exhaust Fan
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| TEF | Tom Eliot Fisch
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| TEF | Tony Elumelu Foundation
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| TEF | Tooele Education Foundation
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| TEF | Tourism Ecological Footprint
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| TEF | Toxic Equivalency Factor
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| TEF | Toxic Equivalent Factor
| Others |
| TEF | Toxicity Equivalence Factor
| Others |
| TEF | Toxicity Equivalency Factor
| Others |
| TEF | Tracheal Esophageal Fistula
| Others |
| TEF | Tracheoesophageal fistula
| Others |
| TEF | Traffic Exposure Factor
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| TEF | Training and Employment Funds
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| TEF | Tranfer Evolution Formalism
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| TEF | Trans Essential Fats
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| TEF | Transformative Education Forum
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| TEF | Transportation Energy Futures
| Others |