This is the 11994th most frequent Turkish word.
giysisi
"Giysisi" means "his/her/its clothing" or "his/her/its outfit" in English.
Here, 'giysisi' is used possessively to indicate clothing belonging to Ali, whose name is explicitly mentioned in the sentence, and 'newly bought' specifies the item.
Ali'nin yeni aldığı giysisi çok şık.
The outfit Ali recently bought is very stylish.
'Giysisi' in this sentence is used to imply the clothing of the person being discussed, where the owner is understood through context rather than explicitly stated.
Giysisi kurutma makinesinden çıkar çıkmaz giydi.
She/He wore her/his clothes right after taking them out of the dryer.
In this example, 'giysisi' is used possessively to indicate clothing belonging to the children, a plural subject, specified earlier in the sentence.