What does Cti mean as in peugeot 205 Cti

The 205 CT l will basically be a cabriolet version of the 205 GTI.

Yes, Cti was a convertible 205, & had either the 1.6 or 1.9 liter engine. With a fuel injected engine (''i'').
The 205 Gti could also have either engine, (and metal roof). In the later years, the Gti had a couple of engine variations, but NOT the Cti.
You can see photos & read about engine swapping at this website:
http://205gti.com/main_uk.htm

In 1994 the last 205 GT l rolled off production lines & only 8 were made.

1990/1 - 150 Roland Garros cabriolets & 350 Roland Garros hard tops, with a 1.4 ''xs'' engine with 85 bhp (63 kW), alloy wheels, half-white leather seats, electric windows, central locking, cabriolet hard electric roofs.

Total GT l production: 332,942
Total Cabriolet production: 72,125