This is the 813th most frequent Malay word.
isterinya
"His/her wife."
The word 'isterinya' is used as a possessive noun here, with 'nya' indicating possession ('his wife').
Dia mengambil bunga untuk isterinya.
He takes flowers for his wife.
In this sentence, 'isterinya' refers to someone else's wife, with 'nya' signifying relationship ('his wife').
Saya melihat isterinya di pasar semalam.
I saw his wife at the market yesterday.
Here, 'isterinya' is used to describe someone's wife and emphasize affection via relational context, with 'nya' denoting possession ('his wife').