Other Uses
- The IATA airport code of the Tenerife North Airport (Los Rodeos).
- Tax File Number, issued by the Australian Taxation Office
- The TFN Group is a facility management company based in Vitry-sur-Seine, France.
- Thanks for Nothing (disambiguation), multiple uses
- Till Further Notice (until further notice), meaning, "Until a future point in time that I may or may not inform you about." Many times used on a sign in the phrase, "Closed Till Further Notice" saying that a business is closed until they tell you otherwise.
- Toll free number, A telephone number you can call in for free within a certain area, usually a country.
- Transferrin, (Biology) the protein product of the TF gene
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