What is the meaning of Yaa?

ISO 639-3 language code for Yaminahua.

The letter ي (y) in the Arabic script.

syncopic form of yayyá

sky

temazcal, a type of sweat lodge, usually built with adobe bricks

nopal

sea trout

tongue

flame

song

music

ash

hominy

down, downward

Source: wiktionary.org