This is the 11088th most frequent Turkish word.
duası
"Duası" means "his/her/its prayer" in English.
In this sentence, 'duaları' is the plural form indicating multiple prayers.
Duaları ile beni destekledi.
She supported me with her prayers.
Dubası is used in its possessive form to indicate a prayer that belongs to 'her/him'.
Onun duası beni her zaman huzura kavuşturur.
Her prayer always brings me peace.
Here, 'duası' is singular and refers to a specific prayer that was fulfilled.