Fin is the Spanish word for "End" as in "The End" at the end of a movie.
The Spanish word for Fin as in the fin on a Fish or an airplane is "Aleta"
Al fin.
It means "end"
It's pronounced feen, rhymes with teen.
Weeks are semanas. The weekend is el fin de semana.
"Fin de semana" in Spanish means "weekend" in English.
In English 'Al fin' means 'finally'.
"FIN" means "The end" in Spanish.
"El fin" translates to "the aim/end" in English.
El fin.
Fin. (feen)
"Fin" = "the 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.