What is the meaning of Alto?

A musical part or section higher than tenor and lower than soprano, formerly the part that performed a countermelody above the tenor or main melody.

A person or musical instrument that performs the alto part.

An alto saxophone

neuter singular of altu

Someone who participates in an alternative subculture (e.g. a hipster, emo or punk).

height; elevation; altitude

alto

Ellipsis of violon alto.; viola

tall

high

deep

top; high place

high

wave

high, tall

deep

loud

to float

high

to make high, raise, elevate

dative/ablative masculine/neuter singular of altus

dative/ablative masculine/neuter singular of altus

loud

tall

high

excessive, extreme

loud; loudly

halt!

tall

high

loud

upper, top

senior (rank)

height (in measurements)

up, high, highly

loudly

stop, halt

break, pause, rest

stop (signal)

red light

halt!; stop!

Source: wiktionary.org