0 the week, year, Monday, etc. before the present one -- la scorsa settimana, l’anno scorso, lo scorso lunedì, ecc.
I went to Barcelona last month. Sono andato a Barcellona il mese scorso.
1 the most recent -- ultimo
2 Your last book, house, job, etc. is the one before the one that you have now. -- scorso, precedente
3 happening or coming at the end -- ultimo
4 only remaining -- ultimo
5 a person or thing that you do not want or expect -- l’ultima persona, cosa, ecc.