Finished Basement
It will generally imply the concrete walls have been covered, there is flooring of some sort on the floor (not bare concrete) and there is some source of heat. It should also imply that the space is of sufficient height that a person can walk without needing to duck or otherwise avoid things hanging from the ceiling. There should also be electrical lighting and outlets. In other words you can use the space as a room rather than just as storage. There might be rules for egress in the case of an emergency like a fire.
"Este fin" = this end
If you mean a fin like a fish fin, there is a word, but mostlly each one is different; Lā (fin). Anal fin, kuaalo. Caudal fin, hiʻu. Dorsal fin, kualā. Pectoral fin, etc. If you mean fin, like 'the end', it is pau'ana.
La fin means la fin it doesn't really mean anything at all. Sorry hope it helped
"The End", means "Fin", in English.
That depends, do you mean fin at the end of a cartoon or comic?
"El fin" translates to "the aim/end" in English.
Finally
end
the side of a plane
"Fin de semana" in Spanish means "weekend" in English.
I guess you mean "Anal fin". If so, the answer is "yes fish do have an anal fin."
Basically it means, "At last, it's finally Sunday".