6-letter words containing t, o, r, f
- tofore — before
- twofer — a card or ticket entitling the holder to purchase two tickets to a theatrical performance at a reduced price.
- watfor — WATerloo FORtran. U Waterloo, Canada. Student-friendly variant of Fortran. "WATFOR - The University of Waterloo Fortran IV Compiler", P.W. Shantz et al, CACM 10(1):41-44 (Jan 1967).