What is the meaning of Ultimo?

On the last day (of a specified month).

Of last month.

= The ultimum; the final, ultimate point of a sequence.

last

recent, current

pertaining to last month

last one

first-person singular present indicative of ultimare

dative/ablative masculine/neuter singular of ultimus

to come to an end, be at the last

first-person singular present indicative of ultimar

Pre-reform spelling (used until 1943 in Brazil and 1911 in Portugal) of último.

first-person singular present indicative of ultimar

last; final

even; including

private

Source: wiktionary.org