What is the meaning of Basso?

A bass singer, especially in opera.

An instrumental part written for a bass instrument.

The double bass, or contrabasso.

Obsolete spelling of bashaw and pasha.

bass (voice; low spectrum of sound tones)

bass guitar

low

short

narrow, thin

shallow

faint

low, lower, lowered

base

low

bottom, lower part

bass (all senses); bass guitar

basso

dative/ablative masculine/neuter singular of bassus

low

underneath

Source: wiktionary.org