  Electroweak processes with four fermions in the final state were measured
extensively at LEP-2 in e+e- collisions with centre-of-mass energies up to 209
GeV. By combining the results obtained by Aleph, Delphi, L3 and Opal, the
predictions from the Standard Model were probed at the level of their present
accuracy. An important outcome was the possibility to measure the predicted
charged triple gauge boson self-couplings with a precision of a few percent.
Moreover studies of four-fermion processes allowed new physics to be searched
for by looking for anomalous gauge boson self-couplings. The measurements
reported are also relevant to direct searches for new particles at LEP, as
four-fermion processes contribute an important background in several cases. The
latest results from the LEP experiments - some of which are now available in
finalized form - and their combination are reviewed and discussed.
