This is the 1223rd most frequent Turkish word.
az
"Az" means "little" or "few" in English.
Here, 'az' is used as an adjective to describe a small quantity of the noun 'su' (water).
Az su kaldı.
There is little water left.
Here, 'az' is modified to 'azıcık,' an informal variation meaning 'a little,' and is used as an adverb to indicate a small amount of waiting time.
Azıcık bekle, hemen geliyorum.
Wait a little, I'm coming right away.
Here, 'az' is used with 'daha' to form the phrase 'az daha,' indicating 'almost' or an action that was close to happening.