This is the 13415th most frequent Turkish word.
komşularını
"Your neighbors."
The word 'komşularını' in this sentence is the accusative form of 'komşuları' with the second person singular possessive suffix '-ın' indicating 'Ahmet's neighbors.'
Ahmet komşularını selamladı.
Ahmet greeted his neighbors.
Here, 'komşularını' implies 'one's neighbors' being visited, with the accusative form due to the action of visiting.
Komşularını ziyaret etmek çok önemlidir.
Visiting one's neighbors is very important.
In this use, 'komşularını' is the accusative form of 'komşuları,' again specifying the object of the action 'invited.'