This is the 2532nd most frequent Arabic word.
ي
The Arabic word "ي" is a possessive suffix meaning "my" or indicates the first-person singular in structures like pronouns or verbs.
Here, 'ي' is a possessive suffix meaning 'my', indicating that the book belongs to the speaker.
كتابي موجود على الطاولة.
My book is on the table.
In this case, 'ي' is a possessive suffix meaning 'my', used with the word 'حبيب' to denote intimacy or affection towards a person.
رأيت حبيبي في السوق.
I saw my beloved in the market.
Here, 'ي' is also a possessive suffix used to mean 'my', specifying ownership of the car by the speaker.