Abbreviation of tetra-hydro- furan (see Furan), a common solvent in organic reactions.

Tetrahydrofuran: a starting material for PolyTHF

Abbreviation for tetrahydrofuran, a solvent used to weld some thermoplastic materials together, such as PVC.

Town Hall First. Standard unspoken rule that the first building you had to build was a town hall. No longer needed in War2BNE as the town hall was the only building you could build first

Tractor Hydraulic Fluid

Tremendously High Frequency